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 .
Claim Status
Claims 1-36 are pending.
Priority
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The foreign priority document is not in English. Accordingly, the effective filing date is 08/15/2022. Should applicant desire to obtain the benefit of foreign priority under 35 U.S.C. 119(a)-(d) prior to declaration of an interference, a certified English translation of the foreign application must be submitted in reply to this action. 37 CFR 41.154(b) and 41.202(e).
Failure to provide a certified translation may result in no benefit being accorded for the non-English application.
Information Disclosure Statement
This is a crowded art. Applicant has not filed an Information Disclosure Statement. Applicant is reminded of their duty to disclose information material to patentability (see 37 CFR § 1.56). § 1.56 Duty to disclose information material to patentability. (a) (in part) A patent by its very nature is affected with a public interest. The public interest is best served, and the most effective patent examination occurs when, at the time an application is being examined, the Office is aware of and evaluates the teachings of all information material to patentability. Each individual associated with the filing and prosecution of a patent application has a duty of candor and good faith in dealing with the Office, which includes a duty to disclose to the Office all information known to that individual to be material to patentability as defined in this section.
Specification
The specification is missing a section directed to the drawings as well as proper sequence listing. The following guidelines illustrate the preferred layout for the specification of a utility application. These guidelines are suggested for the applicant’s use.
Arrangement of the Specification
As provided in 37 CFR 1.77(b), the specification of a utility application should include the following sections in order. Each of the lettered items should appear in upper case, without underlining or bold type, as a section heading. If no text follows the section heading, the phrase “Not Applicable” should follow the section heading:
(a) TITLE OF THE INVENTION.
(b) CROSS-REFERENCE TO RELATED APPLICATIONS.
(c) STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT.
(d) THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT.
(e) INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A READ-ONLY OPTICAL DISC, AS A TEXT FILE OR AN XML FILE VIA THE PATENT ELECTRONIC SYSTEM.
(f) STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR OR A JOINT INVENTOR.
(g) BACKGROUND OF THE INVENTION.
(1) Field of the Invention.
(2) Description of Related Art including information disclosed under 37 CFR 1.97 and 1.98.
(h) BRIEF SUMMARY OF THE INVENTION.
(i) BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S).
(j) DETAILED DESCRIPTION OF THE INVENTION.
(k) CLAIM OR CLAIMS (commencing on a separate sheet).
(l) ABSTRACT OF THE DISCLOSURE (commencing on a separate sheet).
(m) SEQUENCE LISTING. (See MPEP § 2422.03 and 37 CFR 1.821 - 1.825). A “Sequence Listing” is required on paper if the application discloses a nucleotide or amino acid sequence as defined in 37 CFR 1.821(a) and if the required “Sequence Listing” is not submitted as an electronic document either on read-only optical disc or as a text file via the patent electronic system.
Content of Specification
(i) BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S): See MPEP § 608.01(f). A reference to and brief description of the drawing(s) as set forth in 37 CFR 1.74.
(m) SEQUENCE LISTING: See 37 CFR 1.821 - 1.825 and MPEP §§ 2421 - 2431. The requirement for a sequence listing applies to all sequences disclosed in a given application, whether the sequences are claimed or not. See MPEP § 2422.01.
The disclosure is objected to because of the following informalities: there is no Brief Description of the Drawings section and no sequence listing has been filed.
Nucleotide and/or Amino Acid Sequence Disclosures
On pages 9-10 of the specification as filed, a table with sequences is disclosed as shown below:
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Applicant has not filed a proper sequence listing as required.
REQUIREMENTS FOR PATENT APPLICATIONS CONTAINING NUCLEOTIDE AND/OR AMINO ACID SEQUENCE DISCLOSURES
Items 1) and 2) provide general guidance related to requirements for sequence disclosures.
37 CFR 1.821(c) requires that patent applications which contain disclosures of nucleotide and/or amino acid sequences that fall within the definitions of 37 CFR 1.821(a) must contain a "Sequence Listing," as a separate part of the disclosure, which presents the nucleotide and/or amino acid sequences and associated information using the symbols and format in accordance with the requirements of 37 CFR 1.821 - 1.825. This "Sequence Listing" part of the disclosure may be submitted:
In accordance with 37 CFR 1.821(c)(1) via the USPTO patent electronic filing system (see Section I.1 of the Legal Framework for Patent Electronic System (https://www.uspto.gov/PatentLegalFramework), hereinafter "Legal Framework") as an ASCII text file, together with an incorporation-by-reference of the material in the ASCII text file in a separate paragraph of the specification as required by 37 CFR 1.823(b)(1) identifying:
the name of the ASCII text file;
ii) the date of creation; and
iii) the size of the ASCII text file in bytes;
In accordance with 37 CFR 1.821(c)(1) on read-only optical disc(s) as permitted by 37 CFR 1.52(e)(1)(ii), labeled according to 37 CFR 1.52(e)(5), with an incorporation-by-reference of the material in the ASCII text file according to 37 CFR 1.52(e)(8) and 37 CFR 1.823(b)(1) in a separate paragraph of the specification identifying:
the name of the ASCII text file;
the date of creation; and
the size of the ASCII text file in bytes;
In accordance with 37 CFR 1.821(c)(2) via the USPTO patent electronic filing system as a PDF file (not recommended); or
In accordance with 37 CFR 1.821(c)(3) on physical sheets of paper (not recommended).
When a “Sequence Listing” has been submitted as a PDF file as in 1(c) above (37 CFR 1.821(c)(2)) or on physical sheets of paper as in 1(d) above (37 CFR 1.821(c)(3)), 37 CFR 1.821(e)(1) requires a computer readable form (CRF) of the “Sequence Listing” in accordance with the requirements of 37 CFR 1.824.
If the "Sequence Listing" required by 37 CFR 1.821(c) is filed via the USPTO patent electronic filing system as a PDF, then 37 CFR 1.821(e)(1)(ii) or 1.821(e)(2)(ii) requires submission of a statement that the "Sequence Listing" content of the PDF copy and the CRF copy (the ASCII text file copy) are identical.
If the "Sequence Listing" required by 37 CFR 1.821(c) is filed on paper or read-only optical disc, then 37 CFR 1.821(e)(1)(ii) or 1.821(e)(2)(ii) requires submission of a statement that the "Sequence Listing" content of the paper or read-only optical disc copy and the CRF are identical.
Specific deficiencies and the required response to this Office Action are as follows:
Specific deficiency - This application fails to comply with the requirements of 37 CFR 1.821 - 1.825 because it does not contain a "Sequence Listing" as a separate part of the disclosure or a CRF of the “Sequence Listing.”.
Required response - Applicant must provide:
A "Sequence Listing" part of the disclosure; together with
An amendment specifically directing its entry into the application in accordance with 37 CFR 1.825(a)(2);
A statement that the "Sequence Listing" includes no new matter as required by 37 CFR 1.821(a)(4); and
A statement that indicates support for the amendment in the application, as filed, as required by 37 CFR 1.825(a)(3).
If the "Sequence Listing" part of the disclosure is submitted according to item 1) a) or b) above, Applicant must also provide:
A substitute specification in compliance with 37 CFR 1.52, 1.121(b)(3) and 1.125 inserting the required incorporation-by-reference paragraph, consisting of:
A copy of the previously-submitted specification, with deletions shown with strikethrough or brackets and insertions shown with underlining (marked-up version);
A copy of the amended specification without markings (clean version); and
A statement that the substitute specification contains no new matter.
If the "Sequence Listing" part of the disclosure is submitted according to item 1) c) or d) above, applicant must also provide:
A CRF in accordance with 37 CFR 1.821(e)(1) or 1.821(e)(2) as required by 1.825(a)(5); and
A statement according to item 2) a) or b) above.
Specific deficiency - This application fails to comply with the requirements of 37 CFR 1.821 - 1.825 because it does not contain a "Sequence Listing" as a separate part of the disclosure and the CRF of the “Sequence Listing” is defective.
Required response - Applicant must provide:
A "Sequence Listing" part of the disclosure, as described above in item 1); together with
An amendment specifically directing its entry into the application in accordance with 37 CFR 1.825(a)(2);
A statement that the "Sequence Listing" includes no new matter as required by 37 CFR 1.825(a)(4); and
A statement that indicates support for the amendment in the application, as filed, as required by 37 CFR 1.825(a)(3)
If the "Sequence Listing" part of the disclosure is submitted according to item 1) a) or b) above, Applicant must also provide:
A substitute specification in compliance with 37 CFR 1.52, 1.121(b)(3) and 1.125 inserting the required incorporation-by-reference paragraph, consisting of:
A copy of the previously-submitted specification, with deletions shown with strikethrough or brackets and insertions shown with underlining (marked-up version);
A copy of the amended specification without markings (clean version); and
A statement that the substitute specification contains no new matter.
If the "Sequence Listing" part of the disclosure is submitted according to item 1) c) or d) above, Applicant must also provide:
A CRF in accordance with 37 CFR 1.821(e)(1) or 1.821(e)(2) as required by 37 CFR 1.825(a)(5); and
A statement according to item 2) a) or b) above.
Specific deficiency - This application contains a “Sequence Listing as a PDF file (37 CFR 1.821(c)(2)) or as physical sheets of paper (37 CFR 1.821(c)(3)), but fails to comply with the requirements of 37 CFR 1.821 - 1.825 because a copy of the "Sequence Listing" in computer readable form (CRF) has not been submitted as required by 37 CFR 1.821(e)(1)(i) or 1.821(e)(2)(i) as indicated in item 2) above.
Required response - Applicant must provide:
A new CRF of the “Sequence Listing” in accordance with 37 CFR 1.821(e)(1)(i) or 1.821(e)(2)(i) and
A statement that the content of the CRF is identical of the “Sequence Listing” part of the disclosure, submitted as a PDF file (37 CFR 1.821(c)(2)) or on physical sheets of paper (37 CFR 1.821(c)(3)), as required by 37 CFR 1.821(e)(1)(ii) or 1.821(e)(2)(ii).
Summary of Requirements for Patent Applications Filed On Or After July 1, 2022, That Have Sequence Disclosures
37 CFR 1.831(a) requires that patent applications which contain disclosures of nucleotide and/or amino acid sequences that fall within the definitions of 37 CFR 1.831(b) must contain a “Sequence Listing XML”, as a separate part of the disclosure, which presents the nucleotide and/or amino acid sequences and associated information using the symbols and format in accordance with the requirements of 37 CFR 1.831-1.835. This “Sequence Listing XML” part of the disclosure may be submitted:
1. In accordance with 37 CFR 1.831(a) using the symbols and format requirements of 37 CFR 1.832 through 1.834 via the USPTO patent electronic filing system (see Section I.1 of the Legal Framework for Patent Electronic System (https://www.uspto.gov/PatentLegalFramework), hereinafter “Legal Framework”) in XML format, together with an incorporation by reference statement of the material in the XML file in a separate paragraph of the specification (an incorporation by reference paragraph) as required by 37 CFR 1.835(a)(2) or 1.835(b)(2) identifying:
a. the name of the XML file
b. the date of creation; and
c. the size of the XML file in bytes; or
2. In accordance with 37 CFR 1.831(a) using the symbols and format requirements of 37 CFR 1.832 through 1.834 on read-only optical disc(s) as permitted by 37 CFR 1.52(e)(1)(ii), labeled according to 37 CFR 1.52(e)(5), with an incorporation by reference statement of the material in the XML format according to 37 CFR 1.52(e)(8) and 37 CFR 1.835(a)(2) or 1.835(b)(2) in a separate paragraph of the specification identifying:
a. the name of the XML file;
b. the date of creation; and
c. the size of the XML file in bytes.
SPECIFIC DEFICIENCIES AND THE REQUIRED RESPONSE TO THIS NOTICE ARE AS FOLLOWS:
Specific deficiency - This application fails to comply with the requirements of 37 CFR 1.831-1.834 because it does not contain a “Sequence Listing XML” as a separate part of the disclosure. A “Sequence Listing XML” is required because the specification discloses sequences.
Required response - Applicant must provide:
• A “Sequence Listing XML” part of the disclosure, as described above in item 1. or 2.; together with
o A statement that indicates the basis for the amendment, with specific references to particular parts of the application as originally filed, as required by 37 CFR 1.835(a)(3);
o A statement that the “Sequence Listing XML” includes no new matter as required by 37 CFR 1.835(a)(4)
AND
• A substitute specification in compliance with 37 CFR 1.52, 1.121(b)(3), and 1.125 inserting the required incorporation by reference paragraph as required by 37 CFR 1.835(a)(2), consisting of:
o A copy of the previously-submitted specification, with deletions shown with strikethrough or brackets and insertions shown with underlining (marked-up version);
o A copy of the amended specification without markings (clean version); and
o A statement that the substitute specification contains no new matter.
Specific deficiency - Sequences appearing in the specification are not identified by sequence identifiers (i.e., “SEQ ID NO:X” or the like) in accordance with 37 CFR 1.831(c).
Required response – Applicant must provide:
A substitute specification in compliance with 37 CFR 1.52, 1.121(b)(3), and 1.125 inserting the required sequence identifiers, consisting of:
• A copy of the previously-submitted specification, with deletions shown with strikethrough or brackets and insertions shown with underlining (marked-up version);
• A copy of the amended specification without markings (clean version); and
• A statement that the substitute specification contains no new matter.
Specific deficiency - Sequences appearing in the specification are not identified by sequence identifiers (i.e., “SEQ ID NO:X” or the like) in accordance with 37 CFR 1.831(c).
Required response – Applicant must provide:
A substitute specification in compliance with 37 CFR 1.52, 1.121(b)(3), and 1.125 inserting the required sequence identifiers, consisting of:
• A copy of the previously-submitted specification, with deletions shown with strikethrough or brackets and insertions shown with underlining (marked-up version);
• A copy of the amended specification without markings (clean version); and
• A statement that the substitute specification contains no new matter.
Correction is required to properly comply with the sequence listing requirements.
Drawings
The drawings are objected to because 37 CFR 1.437(b) states with regard to the drawings: “They may not contain text matter, except a single word or words when absolutely indispensable.” While legends are permitted (MPEP 608.02(B)(V)(o) and IX), such text matter describing the figures is not permissible and best placed in the Brief Description of the Drawings section of the specification. See objection to the specification above. Consequently, any figure with descriptive text beyond the text required for identifying the Figure is objected to. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance.
Appropriate correction is required.
Claim Objections
Claims 6 and 8 are objected to because of the following informalities: Both claims contain awkward spaces. Claim 6 has a space between the left parenthesis and 16:0:
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Claim 8 has a space between “1:” and “30”:
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.
Correction is required.
Claim 17 is objected to because of the following informalities. Claim 17 introduces an independent method claim. As such, it is best practice to introduce the independent claim with “A” rather than “The”. Dependent claims generally begin with “The”.
Claim Rejections - 35 USC § 101 and Claim Rejections - 35 USC § 112
35 U.S.C. 101 reads as follows:
Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title.
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claims 13-16 are rejected under 35 U.S.C. 101 because these claims are drawn to use claims, which are non-statutory process claims, as defined in 35 U.S.C. § 101. See, Ex parte Dunki, 153 USPQ 678 (Bd. App. 1967). In addition, claims 13-16 are also rejected under 35 U.S.C. § 112, second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which Applicants regard as the invention. More specifically, a claim is rendered indefinite when said claim merely recites a use without any active, positive steps delimiting how this use is actually practiced. See MPEP 2175.03(q). As a result, the Applicants are respectfully required to redraft the aforementioned use claims as statutory process claims that delimit active, positive steps on how to use a liposome according to the invention as originally filed. Correction is required.
Claim Rejections - 35 USC § 112
The following is a quotation of 35 U.S.C. 112(b):
(b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention.
The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph:
The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention.
Claim 8 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. Claim 8 recites: “Liposome according to claim 1, characterised in that the RNA is linked to the liposomes in the proportion of 1:30, that is, 1 mg of liposome contains no more than 1.34 μg of RNA.” This does not make sense. The ratio is strictly 1:30, while the “1 mg of liposome contains no more than 1.34 µg RNA” is a range. In another interpretation, “that is” is a placeholder term “for example”. See Collins Dictionary “that is” [online] retrieved on 11/16/25 from https://www.collinsdictionary.com/dictionary/english/that-is; 1 page). In that sense, the phrase "for example" renders the claim indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). The Examiner suggests deleting 1 mg of liposome contains no more than 1.34 μg of RNA part of the claim. Correction is required.
Claim 9-12 are 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 translation phrase used in claim 1 is “consists of”, which excludes any element, step, or ingredient not specified in the claim. See MPEP 2111.03(II). Consequently, nothing else can be added. No low molecular weight drugs such as emetine or targeting agents such as folic acid can be added to the liposome according to claim 1. Correction is required. These claims will not be further treated on the merits.
Claims 9-10 are further 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.
Claim 9 recites the limitation “the low molecular weight drug”. There is insufficient antecedent basis for this limitation in the claim. Claim 10 is rejected as indefinite because it is dependent upon an indefinite claim. Correction is required.
Claims 17-36 are 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. Claim 17 recites the limitation “the liposome” in line 1. There is insufficient antecedent basis for this limitation in the claim. Dependent claims are rejected as indefinite because they are dependent upon an indefinite claim. Correction is required.
Claim 32 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. Claim 32 recites the limitation “the UV-Vis method” in line 2. There is no UV-Vis method in claim 17. Correction is required.
Claim 35 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. Claim 35 recites the limitation “the DLS method” in line 2. There is no DLS method in claim 17. Correction is required.
Claim 36 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. Claim 36 recites the limitation “the ATR IR method” in line 3. There is no ATR IR method in claim 17. Correction is required.
Allowable Subject Matter
Claims 1-7 appear allowable, after correction of the objection to claim 6, and pending a search update at the time of allowance. The following is a statement of reasons for the indication of allowable subject matter: a cationic liposome loaded with RNA consisting of neutral lipids in the amount of 12.4 to 49% by weight, cationic lipids in the amount of 16.2 to 55% by weight, polyethylene glycol-modified lipids in the amount of 12.9 to 15.1% by weight and cholesterol in an amount from 15.4 to 18.1% by weight, and is characterised by a size from 80 nm to 190 nm, a polydispersity index from 0.06 to 0.23, and a zeta potential from +19 mV to +55 mV appears free of the art. For context, the art of Cui et al. (US20070293449) teaches a pharmaceutical composition comprising a double-stranded RNA (dsRNA), one or more cationic lipids, one or more non-cationic lipids, and one or more lipophilic delivery-enhancing compounds (Claim 1) where the cationic lipid can be 1,2-dipalmitoyl-sn-glycero-3-ethylphosphocholine (Claim 9) and the neutral lipid can be a mixture of DPPC and cholesterol (Claims 12-13) as well as pegylated lipids such as DSPE-MPEG [0048]. However, lipophilic delivery enhancing compounds are excluded from the claimed subject matter.
Prieve et al. (WO2016118697) teaches a delivery system comprising a carrier composition comprising a lipid nanoparticles comprising a therapeutic or diagnostic agent and an enhancer composition (Claim 116) where the lipid nanoparticles comprises a cationic lipid (Claim 118) such as l,2-dimyristoyl-sn-glycero-3-ethylphosphocholine (Claim 119) and a combination of cholesterol and neutral lipid DPPC or DMPC (Claims 124-125) and a PEG-lipid such as DSPE-PEG2000 (Claims 126-127) and the nanoparticles are less than 200 nm in size (Claim 128) and the therapeutic agent is a peptide or polynucleotide (Claims 192-195) such as mRNA (Claim 203) or siRNA (Claims 209-210). Prieve et al. teaches from about 35-55 mole% cationic lipid, from about 40-50 mole% helper lipid and about 2-15 mole% PEG-lipid (Claim 196). It is understood that the relationship between mole% and weight% is that mole% describes the proportion of moles of each component in a mixture, while weight% describes the proportion by mass and the concepts are linked because the molar mass is the linking factor. However, the delivery system requires a membrane destabilizing polymer (Claim 116) that comprises a targeting ligand (Claims 131-132), which is excluded from the instant claims.
Chen et al. (US20180200186) teaches a composition comprising a nucleic acid compound (RNA; claims 37-44) complexed or encapsulated by a lipid particle; wherein the lipid particle comprises: (a) a cationic lipid comprising about 40 mol % to about 70 mol % of the total lipid present in the composition; (b) a neutral lipid comprising about 25 mol % to about 55 mol % of the total lipid present in the composition; (c) cholesterol or tocopherol or a derivative thereof comprising about 25 mol % to about 45 mol%, of the total lipid present in the composition; and (d) a conjugated lipid comprising about 0.3 mol% to about 1.5 mol % of the total lipid present in the composition (Claim 1 but see also 2-44) where the conjugated lipid can be DSPE-PEG2000 [0086]. It is understood that the relationship between mole% and weight% is that mole% describes the proportion of moles of each component in a mixture, while weight% describes the proportion by mass, where the lower the mole% would correspond to lower weight% because the molar mass is the linking factor. The size is taught to be from about 40-150 nm [0109]. However, Chen et al. appear silent on the polydispersity index and zeta potential as claimed and the amount of cholesterol and conjugated lipid appears to be outside the claimed ranges.
Conclusion
Claims 1-7, pending correction of claim 6 and a search update, are allowed. Claims 8-36 are rejected.
Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERNST V ARNOLD whose telephone number is (571)272-8509. The examiner can normally be reached M-F 7-3:30.
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, Brian Y Kwon can be reached at 571-272-0581. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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/ERNST V ARNOLD/Primary Examiner, Art Unit 1613