DETAILED ACTION
Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Status of the Claims
Claims 1-18 are pending and examined.
Claim of Foreign Priority
Applicant’s claim of foreign priority and Certified Copy of Foreign Priority documents have been received by the Office. Applicant has not filed an English translation of the same. As such, the claim of foreign priority has not been perfected.
Claim Rejections - 35 USC § 112
Claim 7 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The term preferably is used multiple times in claim 7. A claim is intended to have required limitations and preferences are not required. Clarification is requested.
Claim Rejections - 35 USC § 112
The following is a quotation of the first paragraph of 35 U.S.C. 112(a):
(a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention.
The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112:
The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention.
Claims 1-13 and 15-18 are rejected under 35 U.S.C. 112, first paragraph, because the specification, while being enabling for the compounds set forth in claim 14, are not considered enabled for the other compounds encompassed by Formula (I) nor their prodrugs, metabolites, deuterated forms, esters, acids, etc., of claim 1. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to use the invention commensurate in scope with these claims.
The standard for determining whether the Specification meets the enablement requirement was cast in the Supreme Court decision of Mineral Separation v. Hyde, 242 U.S. 261 (1916) which postured the question: is the experimentation needed to practice the invention undue or unreasonable? As recognized by the court in In re Wands, 858 F.2d 731 (Fed. Cir. 1988), that is still the standard to be applied, determined by consideration of the Wands factors (MPEP 2164.01(A)); namely, nature of the invention, breadth of the claims, guidance of the specification, the existence of working examples, state of the art, predictability of the art and the amount of experimentation necessary. All of the Wands factors have been considered, with the most relevant factors discussed below
Nature of the Invention: As stated in MPEP 2164.05(a), “[t]he initial inquiry” for determining whether the Specification is enabling “is into the nature of the invention, i.e., the subject matter to which the claimed invention pertains.”
In the instant case, the claimed invention pertains to compounds of Formula (I), which are alleged by the Specification to act as PARP-7 inhibitors.
The State of the Prior Art and the Relative Skill of those in the Art: As stated in MPEP 2164.05(a), “[t]he state of the prior art is what one skilled in the art would have known, at the time the application was filed, about the subject matter to which the claimed invention pertains” and, as stated in MPEP 2164.05(b), “[t]he relative skill of those in the art refers to the skill of those in the art in relation to the subject matter to which the claimed invention pertains at the time the application was filed.”
As discussed above, the instantly claimed invention pertains to compounds of Formula (I), which are alleged by the Specification to act as PARP-7 inhibitors. At the time the instant application was filed, it would have been known by those of ordinary skill in the art that - due in large part to the strict requirement of complementarity between a compound and its corresponding binding site on a target receptor or enzyme - compounds, in the vast majority of cases, demonstrate a remarkably high correlation between their structure, specificity and ability to produce a pharmacological effect. At the same time, it would have also been generally assumed that two compounds with similar chemical properties would exhibit similar biological effects. Thus, given a series of compounds that are shown to exert an activity of interest (or given a target of interest), the ordinarily skilled artisan would have expected that a limited genus of related compounds (e.g., compounds exhibiting near equal molecular shapes and volumes, approximately the same distribution of electrons, and similar physical properties such as hydrophobicity, etc.) would interact with the given target to elicit a related biological response.
The Level of Predictability in the Art: Once a compound has been identified by ligand based and/or structure based drug design methods as potentially binding to the target molecule, it must be evaluated. Usually, several molecules which scored well during the docking run are evaluated in further tests since even the top scoring molecule could fail in vitro assays… Finally, leads are brought into the wet lab for biochemical evaluation. A low level of predictability is not surprising considering that even minor structural changes can, and frequently will, drastically alter or eradicate a parent compound’s ability to modulate the activity of a specific receptor or enzyme. Indeed, modifying even a single atom in a compound can dramatically change the compound’s overall structure and - even though complementarity in one portion of the compound might be improved by the chemical revision - the overall binding or activity might be severely compromised.
The Amount of Direction Provided by the Inventor / Existence of Working Examples: The amount of direction provided by the Applicant is considered to be determined by the Specification and the working examples. In the instant case, the Specification discloses approximately 87 compound species encompassed by Formula (I), which are PARP-7 inhibitors. See pp. 29-32. Table 1 provides examples of less than 30 compounds showing their efficacy in a IC50 PARP7 inhibition assay, and a growth inhibition assay on H1373 cancer cells (i.e., lung adenocarcinoma NSCLC cell line). The only pharmacokinetic data presented in the Specification is in mice for 2 compounds, (compound 17 and compound 25) when administered orally and intravenously. There is no indication of whether the claimed agent will penetrate the blood brain barrier. The examiner notes that brain cancers are claimed to be treatable with the claimed compounds.
Compound 17 Compound 25
PNG
media_image1.png
150
206
media_image1.png
Greyscale
PNG
media_image2.png
133
187
media_image2.png
Greyscale
The only two compounds tested in an in vivo model are virtually identical.
Scope or Breadth of the Claims: As stated in MPEP 2164.01(c), “when a compound or composition claim is not limited by a recited use, any enabled use that would reasonably correlate with the entire scope of that claim is sufficient to preclude a rejection for nonenablement based on how to use” (emphasis added). Thus, as stated in MPEP 2164.08, “[t]he focus of the examination inquiry is whether everything within the scope of the claim is enabled” (emphasis added). Indeed, the Federal Circuit has repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’.” In re Wright, 999 F.2d 1557 (Fed. Cir. 1993) (emphasis added).
At the same time, however, it is also recognized that not everything necessary to practice the invention need be disclosed. Nor is it necessary that an Applicant test all the embodiments of his invention. In re Angstadt, 537 F.2d 498 (CCPA 1976) (emphasis added). In fact, as stated by the court in In re Buchner, 929 F.2d 660 (Fed. Cir. 1991), a patent need not teach, and preferably omits, what is well known in the art.
Accordingly, for purposes of enablement, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate in scope with the protection sought by the claims. Thus, while “a patent application is entitled to claim his invention generically” it is necessary that “he provide a disclosure sufficient to enable one skilled in the art to carry out the invention commensurate with the scope of his claims". Amgen, Inc., v. Chugai Pharmaceutical Co., Ltd. (Fed. Cir. 1991). As noted by the court in In re Fisher, 427 F.2d 833 (CCPA 1970), the scope of enablement must bear a “reasonable correlation” to the scope of the claims. See also Ak Steel Corp. v. Sollac, 344 F.3d 1234 (Fed. Cir. 2003) and In re Moore, 439 F.2d 1232 (CCPA 1971). As stated in MPEP 2164.08, resolution of this concern requires two stages of inquiry: “[t]he first is to determine how broad the claim is with respect to the disclosure. The entire claim must be considered. The second inquiry is to determine if one skilled in the art is enabled to make and use the entire scope of the claim without undue experimentation”.
As to the first inquiry, as discussed above, the claims are drawn to compounds of Formula (I), which are alleged by the Specification to as PARP-7 inhibitors. Considering that Formula (I) encompasses tens of thousands of compound species or more, it is evident that the claims are broad. Yet, as discussed above, the instant Specification discloses approximately 87 similarly structured compound species encompassed by Formula (I) as recited by the claims. As such, the claim is extremely broad with respect to the disclosure. The second inquiry is discussed in detail below.
Amount of Experimentation Necessary: In view of all of the foregoing, at the time the invention was made, it would have required undue experimentation to practice the entire scope of the invention as claimed. As discussed above, the claims are drawn to compounds of Formula (I), which are alleged by the Specification to act as PARP-7 inhibitors. Since identifying any compound which is capable of modulating the activity of a specific receptor, ion channel, or enzyme is extremely complex, the nature of the instant invention considered to be one of extreme complexity. In the instant case, this complexity is exacerbated by the broadness of Formula (I) with respect to the disclosure since Formula (I-1) encompasses at least tens of thousands of compound species, whereas the instant Specification discloses only 87 such compound species exerting the disclosed activity. Although the relative skill of those in the art to which the invention pertains is high, the state of the art and unpredictability within the art is such that even the most talented artisan (armed with screening techniques including computer assisted virtual screening techniques such as ligand-based and structure-based design methods) could not reasonably predict which of the thousands of compounds encompassed by Formula (I) would exert the alleged activity based on the limited disclosure of 87 similarly structured active compounds with a high degree of variability. Although the skilled artisan would have known that certain chemical modifications to the disclosed compounds may predictably provide structurally related compounds having similarly activity, the skilled artisan would have also known that even minor structural changes can, and frequently will, drastically alter or eradicate a parent compound’s ability to modulate the activity of a specific receptor or enzyme.
In this particular case, the 87 compounds taught by the Specification are split with activity level. For example, 23 of those compounds were measured for their growth inhibition with variability. The measured IC50 values include those with values less than 0.1 μM and others with an IC50 value of greater than 10 μM. Compounds 5 and 7, shown below have this discrepancy in potency.
PNG
media_image3.png
144
195
media_image3.png
Greyscale
.
PNG
media_image4.png
139
205
media_image4.png
Greyscale
The compounds shown above are example in which a single difference in a moiety in the entire compound has substantially altered the IC50 value assay. The CN and CF3 are the sole differences in this example.
Despite this, the instant claims include thousands of permutations and do not require structural limitations that are present in all or substantially all of the structures of the embodiments shown in the Specification. The following moieties are included in each embodiment shown.
PNG
media_image5.png
57
57
media_image5.png
Greyscale
, and O-N,
PNG
media_image6.png
55
83
media_image6.png
Greyscale
(in 82/87 compounds),
PNG
media_image7.png
63
56
media_image7.png
Greyscale
or
PNG
media_image8.png
52
70
media_image8.png
Greyscale
or
PNG
media_image9.png
42
66
media_image9.png
Greyscale
.
The above are examples of limited variability among the combinations despite the Specification also showing that minor structural changes can drastically alter the efficacy of a compound.
Not only are the synthesized compounds limited substantially in their structures relative to the breadth of the claims, but the variability and data to any degree is lacking with respect to IC50 PARP7 inhibitory activity and cell proliferation assay data for a single type of cancer cell.
Thus, in order to identify usable compounds of Formula (I), the skilled artisan (at minimum) would have to carry out ligand based drug design methods using the 87 disclosed compounds as a starting point and, assuming the structure of the target receptor was known, combine the findings with data derived from structure based drug design methods to arrive at a small library of “lead” compounds believed to possess the activity of interest. The skilled artisan would then synthesize lead compounds that are within Formula (I) for in vitro testing. Given the unpredictability of the chemical arts, it is highly unpredictable whether any compound within the subgenus of compounds of Formula (I) identified by rational drug design based on the instant disclosure would, in fact, be usable. Whether the other compounds of Formula (I) (i.e., those not identified by rational drug design based on the instant disclosure) would be usable is even less predictable. As such, the only way to ascertain which of the hundreds of millions, and potentially billions, of claimed compounds encompassed by Formula (I) are usable based on the limited disclosure would require undue experimentation. That is, the only way one skilled in the art is enabled to use the entire scope of the claim based on the instant disclosure entails undue experimentation.
To overcome this rejection, Applicant should narrow the scope of the claims such that they bear a reasonable correlation with the disclosure.
Claim Rejections - 35 USC § 112
The following is a quotation of the first paragraph of 35 U.S.C. 112(a):
(a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention.
The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112:
The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention.
Claims 16-18 are rejected under 35 U.S.C. 112, first paragraph, because the specification, while being enabling for inhibiting PARP7 with specific compounds of claim 14, e.g., with different degrees of in vitro potency and those conditions known to be represented by such model, are not considered enabled for prevention and treatment of all hyperproliferative diseases, autoimmune and inflammatory diseases. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to use the invention commensurate in scope with these claims. Prevention of diseases nor treatment of all hyperproliferative diseases, autoimmune and inflammatory diseases are not enabled.
The standard for determining whether the Specification meets the enablement requirement was cast in the Supreme Court decision of Mineral Separation v. Hyde, 242 U.S. 261 (1916) which postured the question: is the experimentation needed to practice the invention undue or unreasonable? As recognized by the court in In re Wands, 858 F.2d 731 (Fed. Cir. 1988), that is still the standard to be applied, determined by consideration of the Wands factors (MPEP 2164.01(A)); namely, nature of the invention, breadth of the claims, guidance of the specification, the existence of working examples, state of the art, predictability of the art and the amount of experimentation necessary. All of the Wands factors have been considered, with the most relevant factors discussed below
Nature of the Invention: As stated in MPEP 2164.05(a), “[t]he initial inquiry” for determining whether the Specification is enabling “is into the nature of the invention, i.e., the subject matter to which the claimed invention pertains.”
In the instant case, the claimed invention pertains to compounds of Formula (I-1), which are alleged by the Specification to prevent and treat all forms of cancer, autoimmune disorders, and others.
The State of the Prior Art and the Relative Skill of those in the Art: As stated in MPEP 2164.05(a), “[t]he state of the prior art is what one skilled in the art would have known, at the time the application was filed, about the subject matter to which the claimed invention pertains” and, as stated in MPEP 2164.05(b), “[t]he relative skill of those in the art refers to the skill of those in the art in relation to the subject matter to which the claimed invention pertains at the time the application was filed.”
According to the University of Kansas Cancer Center, https://www.kucancercenter.org/outreach/prevention/preventable-cancers#:~:text=No%20cancer%20is%20100%25%20preventable,Breast%20cancer (accessed on March 2, 2026), “No cancer is 100% preventable.” However, risks can be mitigated through diet, physical activity and lifestyle choices.
Rodriguez et al., “High PARP7 Expression is Associated with Higher Estrogen Response and Immune Suppression but Less Cell Proliferation and Better Survival in Breast Cancer,” Annals of Surgical Oncology October 28, 2025, teaches: “High PARP7 expression is associated with estrogen and androgen response, but also with better overall survival and lower cell proliferation.” See Conclusion of Abstract.
As discussed above, the instantly claimed invention pertains to compounds of Formula (I-1), which are alleged by the Specification to treat conditions as an inhibitor of PARP7. At the time the instant application was filed, it would have been known by those of ordinary skill in the art that - compounds, in the vast majority of cases, demonstrate a remarkably high correlation between their structure, specificity and ability to produce a pharmacological effect. At the same time, it would have also been generally assumed that two compounds with similar chemical properties would exhibit similar biological effects. Thus, given a series of compounds that are shown to exert an activity of interest (or given a target of interest), the ordinarily skilled artisan would have expected that a limited genus of related compounds (e.g., compounds exhibiting near equal molecular shapes and volumes, approximately the same distribution of electrons, and similar physical properties such as hydrophobicity, etc.) would interact with the given target to elicit a related biological response.
Accordingly, at the time the invention was made, the relative skill of those in the art tasked with identifying compounds exerting an activity of interest would have been high, as the ordinarily skilled artisan would have had, at minimum, a Ph.D. and experience with screening techniques including computer assisted virtual screening techniques such as ligand-based and structure-based design methods. Deciding which technique to use would have been determined by the skilled artisan’s knowledge regarding the compound and target of interest. Ligand based drug design relies on knowledge of a compound or compounds of interest (i.e., ligands) to derive new compounds that will, in theory, similarly interact with the target of interest to elicit the activity of interest. Conversely, structure based drug design relies on knowledge of the three dimensional structure of the target of interest (i.e., receptor, ion channel, or enzyme) to derive new compounds that will, in theory, interact with the target of interest to elicit the activity of interest. In either case, the compounds derived from these techniques (applied alone or in combination) are then subjected to in vitro testing for validation.
The Level of Predictability in the Art: Once a compound has been identified by ligand based and/or structure based drug design methods as potentially binding to the target molecule, it must be evaluated. However, as discussed by Anderson (Chem and Biol 10:787-797, 2003), “it is important to consider that the ranking assigned by the scoring function is not always indicative of a true binding constant, since the model of the target:ligand interaction is inherently an approximation. Usually, several molecules which scored well during the docking run are evaluated in further tests since even the top scoring molecule could fail in vitro assays… Finally, leads are brought into the wet lab for biochemical evaluation” (Page 794, Column 1). By that point, as noted by Thiel (Nature Biotechnol 2:513-519, 2004), “libraries are small and hit rates are on the order of one in ten” (Page 517, Column 2). This low level of predictability is not surprising considering that even minor structural changes can, and frequently will, drastically alter or eradicate a parent compound’s ability to modulate the activity of a specific receptor or enzyme. Indeed, modifying even a single atom in a compound can dramatically change the compound’s overall structure and - even though complementarity in one portion of the compound might be improved by the chemical revision - the overall binding or activity might be severely compromised. This is certainly true in the case. For example, comparing the structures of those compounds of claim 14, they appear relatively similar. However, the in vitro IC50 PARP-7 inhibitory data show substantial differences in in vitro efficacy. Thus, each change in structure must be evaluated for drastic changes in efficacy.
The Amount of Direction Provided by the Inventor / Existence of Working Examples: The amount of direction provided by the Applicant is considered to be determined by the Specification and the working examples. In the instant case, the Specification discloses 87 compounds species encompassed by Formula (I) that shows activity for in vitro PARP-7 inhibitor IC50. See Specification p226. The variability in results is substantial ranging from low to high and this includes for almost identical compounds. Moreover, data is only provided for 16 compounds. Further, Table 2 provides data for approximately 23 compounds shown IC50 values for a single type of cancer cell, being NCI-H1373 cells, which appears to be a lung adenocarcinoma cell for NSCLC. This is the only data provided for the 87 compounds shown in the Specification. In fact, approximately 64/87 compounds have no data at all. There is not a single example of a disease prevented or treated or an in vivo model in which the claimed compounds have been tested.
Scope or Breadth of the Claims: As stated in MPEP 2164.01(c), “when a compound or composition claim is not limited by a recited use, any enabled use that would reasonably correlate with the entire scope of that claim is sufficient to preclude a rejection for nonenablement based on how to use” (emphasis added). Thus, as stated in MPEP 2164.08, “[t]he focus of the examination inquiry is whether everything within the scope of the claim is enabled” (emphasis added). Indeed, the Federal Circuit has repeatedly held that “the specification must teach those skilled in the art how to make and use the full scope of the claimed invention without ‘undue experimentation’.” In re Wright, 999 F.2d 1557 (Fed. Cir. 1993) (emphasis added).
At the same time, however, it is also recognized that not everything necessary to practice the invention need be disclosed. Nor is it necessary that an Applicant test all the embodiments of his invention. In re Angstadt, 537 F.2d 498 (CCPA 1976) (emphasis added). In fact, as stated by the court in In re Buchner, 929 F.2d 660 (Fed. Cir. 1991), a patent need not teach, and preferably omits, what is well known in the art.
Accordingly, for purposes of enablement, the relevant concern is whether the scope of enablement provided to one skilled in the art by the disclosure is commensurate in scope with the protection sought by the claims. Thus, while “a patent application is entitled to claim his invention generically” it is necessary that “he provide a disclosure sufficient to enable one skilled in the art to carry out the invention commensurate with the scope of his claims". Amgen, Inc., v. Chugai Pharmaceutical Co., Ltd. (Fed. Cir. 1991). As noted by the court in In re Fisher, 427 F.2d 833 (CCPA 1970), the scope of enablement must bear a “reasonable correlation” to the scope of the claims. See also Ak Steel Corp. v. Sollac, 344 F.3d 1234 (Fed. Cir. 2003) and In re Moore, 439 F.2d 1232 (CCPA 1971). As stated in MPEP 2164.08, resolution of this concern requires two stages of inquiry: “[t]he first is to determine how broad the claim is with respect to the disclosure. The entire claim must be considered. The second inquiry is to determine if one skilled in the art is enabled to make and use the entire scope of the claim without undue experimentation”.
As to the first inquiry, as discussed above, the claims are drawn to compounds of Formula (I), which are alleged by the Specification as inhibitors of ERAP1. Considering that the conditions claimed includes thousands of distinct cancers, immune conditions, autoimmune conditions, infections, viruses, and more, it is evident that the claims are broad. Yet, as discussed above, the instant Specification discloses only 87 similarly structured compound species encompassed by Formula (I) and the slight deviations in structure of those 87 compounds is substantial- yet such structural deviations pale in comparison to the drastic breadth of the claimed compounds, including their metabolites, deuterated forms, and prodrugs. Despite the variability in efficacy and the lack of an any in vivo assay, there instant claims are directed to treating and preventing all forms of cancer, inflammatory disorders, immune conditions, infections and others. As such, the claim is extremely broad with respect to the disclosure. The second inquiry is discussed in detail below. With respect to a subject population, there is not a single example of a disease prevented or treated or an in vivo model in which the claimed compounds have been tested.
Amount of Experimentation Necessary: In view of all of the foregoing, at the time the invention was made, it would have required undue experimentation to practice the entire scope of the invention as claimed. As discussed above, the claims are drawn to compounds of Formula (I-1), which are alleged by the Specification to inhibit PARP7. Since identifying any compound which is capable of modulating the activity of a specific receptor, ion channel, or enzyme is extremely complex, the nature of the instant invention considered to be one of extreme complexity. In the instant case, this complexity is exacerbated by the broadness of Formula (I) with respect to the disclosure since Formula (I) encompasses thousands of compound species, whereas the instant Specification discloses only 87 such compound species low and high in vitro IC50 inhibitory activity. Although the relative skill of those in the art to which the invention pertains is high, the state of the art and unpredictability within the art is such that even the most talented artisan (armed with screening techniques including computer assisted virtual screening techniques such as ligand-based and structure-based design methods) could not reasonably predict which of the hundreds of millions of compounds encompassed by Formula (I) would exert the alleged activity based on the limited disclosure of 87 compounds comprising discrepancies in activity. Although the skilled artisan would have known that certain chemical modifications to the disclosed compounds may predictably provide structurally related compounds having similarly activity, the skilled artisan would have also known that even minor structural changes can, and frequently will, drastically alter or eradicate a parent compound’s ability to modulate the activity of a specific receptor or enzyme.
The quantity of experimentation needed
The quantity of experimentation needed is undue experimentation. One of skill in the art would need to definitively determine the specific population of individuals who would need to be treated and would furthermore have to determine which of the claimed compounds would provide for the prevention and treatment of neurodegenerative conditions. To prevent and treat cancer and immune conditions in any patient population, as the instant claims are drawn to, would require undue experimentation to both develop an animal model which would reasonably correlate with all forms of neurodegenerative and also to identify the portion of the population in which the instantly claimed compounds would need to necessarily be administered.
Thus, factors such as "sufficient working examples", "the level of skill in the art" and "predictability", etc. have been demonstrated to be sufficiently lacking in the instantly claimed methods. In view of the breadth of the claim, the chemical nature of the invention, and the lack of working examples regarding the activity of the claimed compounds, one having ordinary skill in the art would have to undergo an undue amount of experimentation to use the invention commensurate in scope with the claims.
The court in Genentech Inc. v. Novo Nordisk A/S (CAFC) 42 USPQ2d 1001, states that, “a patent is not a hunting license. It is not a reward for search, but compensation for its successful conclusion" and "[p]atent protection is granted in return for an enabling disclosure of an invention, not for vague intimations of general ideas that may or may not be workable.”
Therefore, in view of the Wands factors and In re Fisher (CCPA 1970) discussed above, to practice the claimed invention herein, a person of skill in the art would have to engage in undue experimentation to test which diseases can be treated or prevented by the compound encompassed in the instant claims, with no assurance of success.
To overcome this rejection, Applicant should narrow the scope of the claims such that they bear a reasonable correlation with the disclosure.
Claim Rejections - 35 USC § 112 (Written Description)
Claims 1-13 and 15-18 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for pre-AIA the inventor(s), at the time the application was filed, had possession of the claimed invention. Following reasons apply:
Claims 1-13 and 15-18 are directed to a compound or method using a compound of Formula (I) that can inhibit PARP7. The compound can include a deuterated compound, metabolite, prodrug, ester, or acid, and can treat or prevent any disorder wherein the condition is “regulated by or affected by PARP7 activity or involves PARP7 activity or overexpression….” The examiner notes that this language include conditions not contemplated and can include lower expression of PARP7 in a subject, and other conditions with a tangential role for PARP7, e.g. See claim 16.
It is not entirely clear which persons or conditions are: regulated by or affected by PARP7 activity or involves PARP7 activity or overexpression. In other words, it is not clear that Applicant contemplated the extent and/or specificity of subject populations claimed. It is further not clear which metabolites, prodrugs, etc., were contemplated as not a single example of any of these categories of agents, including metabolites have necessarily been identified nor described in the Specification.
The instant Specification tests approximately 23 compounds of the 87 actually shown. The variability in potency for PARP7 inhibition is substantial.
The Specification does not describe other nor test nor contemplate any other specific compounds. Claimed invention is not fully described in the specification. The written description requirement implements the principle that a patent must describe the technology that is sought to be patented; the requirement serves both to satisfy the inventor's obligation to disclose the technologic knowledge upon which the patent is based, and to demonstrate that the patentee was in possession of claimed invention.
Applicant must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention, and demonstrate that by disclosure in the specification of the patent.
To satisfy the written description requirement, a patent specification must describe the claimed invention in sufficient detail that one skilled in the art can reasonably conclude that the inventor had possession of the claimed invention. See, e.g., Moba, B.V. v. Diamond Automation, Inc., 325 F.3d 1306, 1319, 66 USPQ2d 1429, 1438 (Fed. Cir. 2003).
Written description requirement, serves both to satisfy the inventor's obligation to disclose the technologic knowledge upon which the patent is based, and to demonstrate that the patentee was in possession of the invention that is claimed. A patentee can lawfully claim only what he has invented and described, and if he claims more his patent is void.
See MPEP 2163.01-02) for General principles governing compliance with the written description requirement applications. 35 U.S.C. 112(a) and the first paragraph of pre-AIA 35 U.S.C. 112 require that the “specification shall contain a written description of the invention The written description requirement has several policy objectives. “[T]he ‘essential goal’ of the description of the invention requirement is to clearly convey the information that an applicant has invented the subject matter which is claimed.” In re Barker, 559 F.2d 588, 592 n.4, 194 USPQ 470, 473 n.4 (CCPA 1977). Another objective is to convey to the public what the applicant claims as the invention. See Regents of the Univ. of Cal. v. Eli Lilly, 119 F.3d 1559, 1566, 43 USPQ2d 1398, 1404 (Fed. Cir. 1997), cert. denied, 523 U.S. 1089 (1998). "The ‘written description’ requirement implements the principle that a patent must describe the technology that is sought to be patented; the requirement serves both to satisfy the inventor’s obligation to disclose the technologic knowledge upon which the patent is based, and to demonstrate that the patentee was in possession of the invention that is claimed." Capon v. Eshhar, 418 F.3d 1349, 1357, 76 USPQ2d 1078, 1084 (Fed. Cir. 2005). Further, the written description requirement promotes the progress of the useful arts by ensuring that patentees adequately describe their inventions in their patent specifications in exchange for the right to exclude others from practicing the invention for the duration of the patent’s term.
Genentech Inc. v. Novo Nordisk A/S (CA FC) 42 USPQ2d 1001, states that “a patent is not a hunting license. It is not a reward for search, but compensation for its successful conclusion" and "patent protection is granted in return for an enabling disclosure of an invention, not for vague intimations of general ideas that may or may not be workable".
Whenever the issue of written description arises, the fundamental factual inquiry is whether the specification conveys with reasonable clarity to those skilled in the art that, as of the filing date sought, applicant was in possession of the invention as now claimed. See, e.g., Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Fed. Cir. 1991). An applicant shows possession of the claimed invention by describing the claimed invention with all of its limitations using such descriptive means as words, structures, figures, diagrams, and formulas that fully set forth the claimed invention. Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572, 41 USPQ2d 1961, 1966 (Fed. Cir. 1997). MPEP 2163.02).
Whether the written description requirement is satisfied is a fact-based inquiry that will depend on the nature of the claimed invention and the knowledge of one skilled in the art at the time an invention is made and a patent application is filed. The written description requirement is not satisfied by the appearance of mere indistinct words in a specification or a claim, even an original claim. . A description of what a material does, rather than of what it is, usually does not suffice." Enzo, 323 F.3d at 968 (citing Eli Lilly, 119 F.3d at 1568); see Rochester, 358 F.3d at 926 ("[G]eneralized language may not suffice if it does not convey the detailed identity of an invention.").
The function of description requirement is to ensure that the inventor had possession, as of filing date of the application relied on, the specific subject matter claimed by him. See Genentech, 108 F 3d 1361, 1365 (Fed. Cir. at 1366, 78, 1999).
Written description requirement, a patent specification must describe the claimed invention in sufficient detail that one skilled in the art can reasonably conclude that the inventor had possession of the claimed invention. See, e.g., Moba, B.V. v. Diamond Automation, Inc., 325 F.3d 1306, 1319, 66 USPQ2d 1429, 1438 (Fed. Cir. 2003); Vas-Cath, Inc. v. Mahurkar, 935 F.2d at 1563, 19 USPQ2d at 1116.
However, a showing of possession alone does not cure the lack of a written description. Enzo Biochem, Inc. v. Gen-Probe, Inc., 323 F.3d 956, 969-70, 63 USPQ2d 1609, 1617 (Fed. Cir. 2002). For example, it is now well accepted that a satisfactory description may be found in originally-filed claims or any other portion of the originally-filed specification. See In re Koller, 613 F.2d 819, 204 USPQ 702 (CCPA 1980); In re Gardner, 475 F.2d 1389, 177 USPQ 396 (CCPA 1973); In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976). However, that does not mean that all originally-filed claims have adequate written support. The specification must still be examined to assess whether an originally-filed claim has adequate written support.
Regardless whether a compound is claimed per se or a method is claimed that entails the use of the compound, the inventor cannot lay claim to that subject matter unless he can provide a description of the compound sufficient to distinguish infringing compounds from non-infringing compounds, or infringing methods from non-infringing methods. Where the specification provides only constructive examples in lieu of working examples, it must still "describe the claimed subject matter in terms that establish that the applicant was in possession of the claimed invention, including all of the elements and limitations.
It is suggested to amend the claims to represent the embodiments in the Specification that were possessed at the time of filing.
The examiner notes that he did apply duplicative references by Vasbinder and/or Assignee Ribon Therapeutics, Inc.
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claims 1-18 are rejected under 35 U.S.C. 103 as being unpatentable over Vasbinder et al., (US2019/0330194).
Vasbinder teaches PARP7 inhibitors for treating cancer. See Abstract. Inflammation is also taught to be treated. See par. 528. The PARP7 inhibitors can be administered with other active agents. See par. 535. Carriers and excipients are contemplated for use as well. See par. 540, 541. Lung cancer cells including NCI-H1373 were shown to be treatable through PARP7 inhibition. See Example C. The examiner notes that the linker connecting the cyclic moieties is vast and not conveyed as particularly critical. See, e.g., par.’s 51, 97, 127-130.
Representative and claimed compounds include the following:
PNG
media_image10.png
220
373
media_image10.png
Greyscale
; and
PNG
media_image11.png
213
384
media_image11.png
Greyscale
The difference between the compound above and those claimed in claim 14 are the linker portion of the molecule differs. However, the linker portion of the molecule is shown to include C=O, NH, and O in an alkyl chain. A prima facie case of obviousness may be made when chemical compounds have very close structural similarities and similar utilities. "An obviousness rejection based on similarity in chemical structure and function entails the motivation of one skilled in the art to make a claimed compound, in the expectation that compounds similar in structure will have similar properties." In re Payne, 606 F.2d 303, 313, 203 USPQ 245, 254 (CCPA 1979). See In re Papesch, 315 F.2d 381, 137 USPQ 43 (CCPA 1963).
It would have been prima facie obvious to a person of ordinary skill in the art prior to the filing of the instant application to arrive at the claimed products and methods in view of the cited prior art. The prior art teaches claimed compounds for use in treating claimed subject populations wherein the sole distinction over the cited prior art is an N-O bond within a linker that is taught to include NH, N, and oxygens. There is a presumption that an almost identical compounds with active moieties that are identical would have similar functionality and the prior art teaches compounds with identical moieties to those claimed for an identical use through an identical mode of action. Further, the prior art provides for substantial variability among linker groups indicating a lack of a criticality associated therewith. As such, there is a reasonable and predictable expectation of arriving that claimed products and methods in view of the cited prior art.
As such, no claim is allowed.
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to JARED D BARSKY whose telephone number is (571)272-2795. The examiner can normally be reached on 9-5 M-F.
If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Amy Clark can be reached on 571-272-1310. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000.
/JARED BARSKY/Primary Examiner, Art Unit 1628