Prosecution Insights
Last updated: July 17, 2026
Application No. 18/252,246

ELECTROLYTE SOLUTION FOR NONAQUEOUS SECONDARY BATTERIES, NONAQUEOUS SECONDARY BATTERY USING SAME, AND METHOD FOR DISCHARGING NONAQUEOUS SECONDARY BATTERY

Final Rejection §102§103
Filed
May 09, 2023
Priority
Nov 10, 2020 — JP 2020-187493 +5 more
Examiner
CHMIELECKI, SCOTT J
Art Unit
1729
Tech Center
1700 — Chemical & Materials Engineering
Assignee
National Institute of Advanced Industrial Science and Technology
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
618 granted / 778 resolved
+14.4% vs TC avg
Strong +20% interview lift
Without
With
+20.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
31 currently pending
Career history
797
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
84.1%
+44.1% vs TC avg
§102
5.3%
-34.7% vs TC avg
§112
6.1%
-33.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 778 resolved cases

Office Action

§102 §103
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 . The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim Rejections - 35 USC § 102 The rejection of claims 1-19 under 35 U.S.C. § 102(a)(1) as being anticipated by In Situ Study of Electrolyte Reactions in Secondary Lithium Cells, Fong et al. 1987 J. Electrochem. Soc. 134 516, available at: https://iopscience.iop.org/article/10.1149/1.2100501/pdf, last visited November 25, 2025, hereinafter “Fong,” is withdrawn because Applicant amended claim 1. 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 1-19 are rejected under 35 U.S.C. § 103 as being unpatentable over Fong in view of Suzuki et al. (US 2017/0057825 A1), hereinafter “Suzuki.” Regarding claims 1-12, Fong discloses a nonaqueous secondary battery with a lithium-free transition metal sulfide as a cathode active material, in this case MoS2 (p. 517), wherein the nonaqueous secondary battery electrolyte is 100 vol% of a cyclic carbonate compound, in this case propylene carbonate (PC) or sulfolane. Fong does not disclose that the lithium-free transition metal sulfide is vanadium sulfide. However, Suzuki teaches that vanadium sulfide, specifically V2S5 and VS-2, may be used in lieu of molybdenum sulfide, MoS2, as a cathode active material (¶ [0084]). One having ordinary skill in the art would have understood that substituting vanadium sulfide for molybdenum sulfide would have yielded the predictable result of a functioning cathode for a nonaqueous secondary battery. See M.P.E.P. § 2143 I. B. Therefore, it would have been obvious to have substituted vanadium sulfide for molybdenum sulfide in order to yield the predictable result of a functioning cathode. “‘A generic claim cannot be allowed to an applicant if the prior art discloses a species falling within the claimed genus.’ The species in that case will anticipate the genus. In re Slayter, 276 F.2d 408, 411, 125 USPQ 345, 347 (CCPA 1960); In re Gosteli, 872 F.2d 1008, 10 USPQ2d 1614 (Fed. Cir. 1989) (Gosteli claimed a genus of 21 specific chemical species of bicyclic thia-aza compounds in Markush claims. The prior art reference applied against the claims disclosed two of the chemical species. The parties agreed that the prior art species would anticipate the claims unless applicant was entitled to his foreign priority date.).” M.P.E.P. § 2131.02 I. Furthermore, “[a] claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers.” M.P.E.P. § 608.01(n) III. Here, Applicant has claimed a two-member Markush group consisting of species (A) and (B) as set forth in claim 1. Each claim ultimately depending from claim 1 necessarily incorporates this Markush group. Species (A) recites yet another Markush group, with one member of 100 vol% of a cyclic carbonate compound and no chain carbonate. Fong and Suzuki render the claims obvious because they clearly teach one member of each of the recited Markush groups, even if the dependent claims further limit the non-disclosed member. Regarding 13, Fong further discloses that the cyclic carbonate compound is PC (p. 517). Regarding claim 14, Fong further discloses that the lithium-free metal sulfide is molybdenum sulfide, in this case MoS2 (p. 517). Regarding claims 15 and 17, Fong further discloses that the electrolyte solution comprises a lithium salt, in this case LiAsF6 (p. 517). Regarding claim 16, Fong further discloses that the lithium salt is an inorganic lithium salt, in this case LiAsF6 (p. 517). Regarding claim 18, Fong further discloses that the lithium salt is LiAsF6 (p. 517). Regarding claim 19, Fong further discloses that the lithium salt concentration is 0.3 to 2.5 mol/L, in this case 1 M (p. 517). “If the prior art discloses a point within the claimed range, the prior art anticipates the claim.” UCB, Inc. v. Actavis Labs. UT, Inc., 65 F.4th 679, 687, 2023 USPQ2d 448 (Fed. Cir. 2023); M.P.E.P. § 2131.03 I. Response to Arguments Applicant’s arguments with respect to claims 1-19 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SCOTT J CHMIELECKI whose telephone number is (571)272-7641. The examiner can normally be reached M-F 9 am to 5 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, Ula Ruddock can be reached at (571) 272-1481. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SCOTT J. CHMIELECKI/Primary Examiner, Art Unit 1729
Read full office action

Prosecution Timeline

May 09, 2023
Application Filed
Dec 01, 2025
Non-Final Rejection mailed — §102, §103
Mar 31, 2026
Response Filed
Apr 30, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
79%
Grant Probability
99%
With Interview (+20.1%)
2y 9m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 778 resolved cases by this examiner. Grant probability derived from career allowance rate.

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