Prosecution Insights
Last updated: April 19, 2026
Application No. 18/569,157

NOVEL PYRIDINE DERIVATIVE COMPOUND AS RON INHIBITOR

Non-Final OA §102§103§112§DP
Filed
Dec 11, 2023
Examiner
SHIAO, REI TSANG
Art Unit
1691
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
LG Chem, Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
45%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
1612 granted / 2019 resolved
+19.8% vs TC avg
Minimal -35% lift
Without
With
+-35.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
53 currently pending
Career history
2072
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
29.1%
-10.9% vs TC avg
§102
8.1%
-31.9% vs TC avg
§112
29.6%
-10.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 2019 resolved cases

Office Action

§102 §103 §112 §DP
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 . DETAILED ACTION Priority and Status of Claims 1. This application is a 371 of PCT/KR2022/009038 06/24/2022, which claims benefit of the foreign application KOREA, REPUBLIC OF KR10-2021-0082699 06/24/2021. 2. Claims 1-14 are pending in the application. Claim Rejections - 35 USC § 112 3. 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. Claims 10-11 is rejected under 35 U.S.C. 112(a) or 112 first paragraph (pre-AIA ), because the specification does not reasonably provide enablement of “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease), see claims 10-11. The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make the invention commensurate in scope with these claims. ln In re Wands, 8 USPQ2d 1400 (1988), factors to be considered in determining whether a disclosure meets the enablement requirement of 35 U.S.C. 112, first paragraph, have been described. They are: 1. the nature of the invention, 2. the state of the prior art, 3. the predictability or Iack thereof in the art, 4. the amount of direction or guidance present, 5. the presence or absence of working examples, 6. the breadth of the claims, 7. the quantity of experimentation needed, and 8. the level of the skill in the art. In the instant case: The nature of the invention The nature of the invention of claims 10-11 is drawn to intent methods of use for treating “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease). The state of the prior art and the predictability or lack thereof in the art The state of the prior art is that the pharmacological art involves screening in vitro and in vivo to determine which compound iloperidone exhibit the desired pharmacological activities (i.e., what compound iloperidone can treat which specific diseases by what mechanism). There is no absolute predictability even in view of the seemingly high Ievel of skill in the art. The existence of these obstacles establishes that the contemporary knowledge in the art would prevent one of ordinary skill in the art from accepting any therapeutic regimen on its face. The prior art is Miwa’s US 2019/ 0055261A1, it discloses a compound of the formula (II)for treating prostate cancer, see columns 2 and 8. The instant claimed invention is highly unpredictable as discussed below: It is noted that the pharmaceutical art is unpredictable, requiring each embodiment to be individually assessed for physiological activity. In re Fisher, 427 F.2d 833,166 USPQ 18 (CCPA 1970) indicates that the more unpredictable an area is, the more specific enablement is necessary in order to satisfy the statute. Applicants are claiming intent methods of use using the instant compound for treating “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease). As such, the specification fails to enable the skilled artisan to use the instant compound for treating “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease). In addition, there is no established correlation between in vitro or in vivo activity and accomplishing “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease), and those skilled in the art would not accept allegations in the instant specification to be reliable predictors of success, and those skilled in the art would not be able to use the instant compounds since there is no description of an actual method “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease) in a host is treated. Hence, one of skill in the art is unable to fully predict possible results from the administration of the instant compound due to the unpredictability of “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease). The “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease) is known to have many obstacles that would prevent one of ordinary skill in the art from accepting treating regimen on its face. The amount of direction or guidance present and the presence or absence of working examples The only direction or guidance present in the instant specification is the description of treating a number of disorders or diseases, see pages 20-30 of the specification. There are no in vitro or in vivo working examples present for “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease) by the administration of the instant invention. The breadth of the claims The breadth of the claims is methods of use of the instant compounds for treating “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease). The quantity of experimentation needed The quantity of experimentation needed is undue experimentation. One of skill in the art would need to determine how “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease) would be benefited (i.e., treated) by the administration of the instant invention and would furthermore then have to determine which of the claimed methods of use would provide “protein kinase-mediated disease” and “RON-mediated disease” without limitation (i.e., no named disease), if any. The Ievel of the skill in the art The Ievel of skill in the art is high. However, due to the unpredictability in the pharmaceutical art, it is noted that each embodiment of the invention is required to be individually assessed for physiological activity by 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''. in vitro and in vivo screening to determine which methods of use exhibit the desired pharmacological activity and which would benefit from this activity. Thus, the specification fails to provide sufficient support of the broad use of the pharmaceutical composition of the instant claims for the various diseases or disorders. As a result necessitating one of skill to perform an exhaustive search for which metabolic-related disease s can be treated by what pharmaceutical compound of the instant claims in order to practice the claimed invention. 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 compound regards to the treatment of the many diseases, 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. Genentech lnc. 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''. Therefore, in view of the Wands factors and ln 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, with no assurance of success. This rejection can be overcome by incorporation of named disease supported by the specification into claims 10-11 would obviate the rejection. 4. In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claim Rejections - 35 USC § 102 5. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim 1 is rejected under 35 U.S.C. 102 (a) (1) as being anticipated by Xi et al. US 2015/0050239 A1. Applicant claim a compound of formula (1), i.e., PNG media_image1.png 206 682 media_image1.png Greyscale , wherein W is N or CH, Z is hydrogen or alkyl, X is O, Y is hydrogen or alkyl, R1 is hydrogen, ring A is 5-membered heteroaryl, ring B is hydrogen, alkyl, aryl, or cycloalkyl, see claim 1. Xi et al. ‘239 disclose six compounds, i.e., compounds No. (1)-(6) in claim 18 in column 48. They clearly anticipate the instant compounds of formula (1), wherein W is N or CH, Z is hydrogen or alkyl, X is O, Y is hydrogen or alkyl, R1 is hydrogen, ring A is 5-membered heteroaryl, ring B is hydrogen, alkyl, aryl, or cycloalkyl. Claim Rejections - 35 USC § 103 6. The following is a quotation of 35 U.S.C. 103(a) 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103(a) are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or non-obviousness. This application currently names joint inventors. In considering patentability of the claims under 35 U.S.C. 103(a), the examiner presumes that the subject matter of the various claims was commonly owned at the time any inventions covered therein were made absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and invention dates of each claim that was not commonly owned at the time a later invention was made in order for the examiner to consider the applicability of 35 U.S.C. 103(c) and potential 35 U.S.C. 102(f) or (g) prior art under 35 U.S.C. 103(a). Claims 1-14 are rejected under 35 U.S.C. 103(a) as being obvious over Xi et al. US 2015/0050239 A1. Applicant claim a compound/composition of formula (1), i.e., PNG media_image1.png 206 682 media_image1.png Greyscale , wherein W is N or CH, Z is hydrogen or alkyl, X is O, Y is hydrogen or alkyl, R1 is hydrogen, ring A is 5-membered heteroaryl, ring B is hydrogen, alkyl, aryl, or cycloalkyl, see claim 1. Dependent claims 2-14 further limit the scope of compounds, i.e., specific variables of W, ring A, Y and R12, specific compounds, and methods of use for treating protein kinase-mediated disease including cancer. Determination of the scope and content of the prior art (MPEP §2141.01) Xi et al. ‘239 disclose a compound/composition of formula (I), i.e., PNG media_image2.png 188 374 media_image2.png Greyscale , wherein W is CR7 or N, and X, Y and Z is H, alkyl or cycloalkl, and methods of use for treating kinase-mediated disease including cancer, see columns 45-51 Determination of the difference between the prior art and the claims (MPEP §2141.02) The difference between instant claims and Xi et al. ‘239 is that the instant claims are embraced within the scope of Xi et al. ‘239. Finding of prima facie obviousness-rational and motivation (MPEP §2142-2143) One having ordinary skill in the art would find the claims 1-14 prima facie obvious because one would be motivated to employ the compound/composition and methods of use of Xi et al. ‘239 to obtain instant invention. The motivation to make the claimed compounds/compositions and methods of use derived from the known compound/composition and methods of use of Xi et al. ‘239 would possess similar activity to that which is claimed in the reference. Double Patenting 7. The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the "right to exclude" granted by a patent and to prevent possible harassment by multiple assignees. See In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the conflicting application or patent is shown to be commonly owned with this application. See 37 CFR 1.130(b). Effective January 1, 1994, a registered attorney or agent of record may sign a terminal disclaimer. A terminal disclaimer signed by the assignee must fully comply with 37 CFR 3.73(b). Claim 1 is are provisionally rejected under the judicially created doctrine of obviousness-type double patenting as being unpatentable over claim 1 of Ham et al. co-pending application No. 18/570,515. Although the conflicting claims are not identical, they are not patentably distinct from each other and reasons are as follows. Applicant claim a compound/composition of formula (1), i.e., PNG media_image1.png 206 682 media_image1.png Greyscale , wherein W is N or CH, Z is hydrogen or alkyl, X is O, Y is hydrogen or alkyl, R1 is hydrogen, ring A is 5-membered heteroaryl, ring B is hydrogen, alkyl, aryl, or cycloalkyl, see claim 1. Ham et al. ‘515 claims a compound of formula (1), i.e., PNG media_image3.png 240 530 media_image3.png Greyscale , wherein ring A is heteroaryl, X is O, R2 is hydrogen or alkyl, ring B is heteroaryl substituted with halogen, alkyl or hydroxy, R 1 is hydrogen or alkyl, see claim 1. The difference between instant claims and Ham et al. ‘515 is that the instant claim is embraced within the scope of Ham et al. ‘515. One having ordinary skill in the art would find the claim 1 prima facie obvious because one would be motivated to employ the compound of Ham et al. ‘515 to obtain instant invention. The motivation to make the claimed compounds derived from the known compounds of Ham et al. ‘515 would possess similar activity to that which is claimed in the reference. This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REI TSANG SHIAO whose telephone number is (571)272-0707. The examiner can normally be reached on 8:30 am-5:00 pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Renee Claytor can be reached on 571-272-8394. 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. /REI TSANG SHIAO/ Rei-tsang Shiao, Ph.D.Primary Examiner, Art Unit 1691 February 05, 2026
Read full office action

Prosecution Timeline

Dec 11, 2023
Application Filed
Feb 05, 2026
Non-Final Rejection — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599580
COMPOSITION COMPRISING A LIPID COMPOUND, A TRIGLYCERIDE, AND A SURFACTANT, AND METHODS OF USING THE SAME
2y 5m to grant Granted Apr 14, 2026
Patent 12600719
SALT INDUCIBLE KINASE INHIBITORS
2y 5m to grant Granted Apr 14, 2026
Patent 12599579
COMPOSITIONS AND COMPOUNDS CONTAINNG KETONE BODIES AND/OR KETONE BODY PRECURSORS AND ONE OR MORE AMINO ACIDS
2y 5m to grant Granted Apr 14, 2026
Patent 12595556
MOLYBDENUM IMIDO ALKYL/ALLYL COMPLEXES FOR DEPOSITION OF MOLYBDENUM-CONTAINING FILMS
2y 5m to grant Granted Apr 07, 2026
Patent 12594254
INTRANASAL ADMINISTRATION OF N-ACETYLCYSTEINE AND USES THEREOF
2y 5m to grant Granted Apr 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
80%
Grant Probability
45%
With Interview (-35.0%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 2019 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month