Prosecution Insights
Last updated: July 17, 2026
Application No. 18/100,929

COMPOSITE PARTICLE, POSITIVE ELECTRODE, ALL-SOLID-STATE BATTERY, AND MANUFACTURING METHOD OF COMPOSITE PARTICLE

Final Rejection §102§103
Filed
Jan 24, 2023
Priority
Mar 25, 2022 — JP 2022-049686
Examiner
HAUTH, GALEN H
Art Unit
1743
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Toyota Motor Corporation
OA Round
2 (Final)
65%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 65% of resolved cases
65%
Career Allowance Rate
671 granted / 1035 resolved
At TC average
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
7 currently pending
Career history
1042
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
81.4%
+41.4% vs TC avg
§102
4.5%
-35.5% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1035 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 . Response to Amendment Acknowledgment is made to applicant’s amendment of claim 1 and the addition of claims 9-11. Currently claims 1-11 are pending with claims 6-8 withdrawn. Claim Rejections - 35 USC § 102 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 (i.e., changing from AIA to pre-AIA ) 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. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-3 and 11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by XIA et al. (CN 111762768 A, machine translation provided for citation). With regards to claim 1, XIA teaches a composite particle comprising a positive electrode active material particle (lithium manganate particle of spinel structure, discussed as a positive electrode material on page 6) and a coating film (“uniformly coated with NaLiPO4 layer”) as discussed in Embodiment 1 on page 7 of the translation provided. XIA teaches that the coating includes a phosphorous compound with lithium and sodium. With regards to claim 2, XIA teaches that compound NaLiPO4 which has a ratio of 1 for the elements of sodium and phosphorous (Embodiment 1). With regards to claim 3, XIA teaches the particle is “uniformly coated” (Embodiment 1). With regards to claim 11, XIA teaches that the particle is lithium manganate (Embodiment 1). Claim Rejections - 35 USC § 103 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 (i.e., changing from AIA to pre-AIA ) 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. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 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 nonobviousness. Claim(s) 4 and 5 is/are rejected under 35 U.S.C. 103 as being unpatentable over XIA et al. (CN 111762768 A, machine translation provided for citation) as applied to claim 1 above, and further in view of Tanaka et al. (US 2020/0259128). With regards to claims 4 and 5, XIA teaches a lithium manganate positive electrode active material, but does not explicitly teach use in a sulfide solid electrolyte battery. In a similar field of endeavor, TANAKA teaches an all-solid state battery stack comprising a sulfide solid electrolyte (¶ 0120) used in conjunction with a spinel type lithium manganate positive electrode active material (¶ 0112). It would have been obvious to one of ordinary skill in the art at the time the invention was effectively filed to utilize the lithium manganate positive electrode active material of XIA in a sulfide electrolyte all-solid state battery as taught by TANAKA as both relate to lithium ion positive electrode active materials comprising spinel lithium manganate presenting a reasonable expectation of success, and doing so combines a known prior art active material in a known battery arrangement yielding predictable results and a simple combination of known prior art elements for their intended purpose. Allowable Subject Matter Claims 9 and 10 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Response to Arguments Applicant’s arguments with respect to claim(s) 1-5 and 9-11 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 GALEN H HAUTH whose telephone number is (571)270-5516. The examiner can normally be reached Monday-Friday 9:30 AM to 6 PM EST. 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, Alexa Neckel can be reached at 571-272-2450. 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. /GALEN H HAUTH/Supervisory Patent Examiner, Art Unit 1743
Read full office action

Prosecution Timeline

Jan 24, 2023
Application Filed
Dec 16, 2025
Non-Final Rejection mailed — §102, §103
Feb 12, 2026
Interview Requested
Feb 25, 2026
Examiner Interview Summary
Mar 09, 2026
Response Filed
Jun 24, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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REEL-TO-REEL SURFACE PRESS APPARATUS
3y 10m to grant Granted Jun 23, 2026
Patent 12661846
METHOD AND SYSTEM FOR ADDITIVE MANUFACTURING OF PEELABLE SACRIFICIAL STRUCTURE
2y 5m to grant Granted Jun 23, 2026
Patent 12661829
TRANSVERSE TENSIONING SYSTEM AND METHOD FOR CONTINUOUS COMPRESSION MOLDING OF A STACK OF PLIES
2y 0m to grant Granted Jun 23, 2026
Patent 12605886
A STEREOLITHOGRAPHY METHOD AND MACHINE FOR THE PRODUCTION OF A THREE-DIMENSIONAL OBJECT
5y 4m to grant Granted Apr 21, 2026
Patent 12609425
SOLID STATE BATTERY
3y 4m to grant Granted Apr 21, 2026
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
65%
Grant Probability
83%
With Interview (+18.6%)
3y 3m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1035 resolved cases by this examiner. Grant probability derived from career allowance rate.

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