Prosecution Insights
Last updated: October 01, 2026
Application No. 18/269,095

NEGATIVE-ELECTRODE MATERIAL FOR SECONDARY BATTERY, AND SECONDARY BATTERY

Non-Final OA §112
Filed
Jun 22, 2023
Priority
Dec 25, 2020 — JP 2020-217403 +1 more
Examiner
BARCENA, CARLOS
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Panasonic Holdings Corporation
OA Round
3 (Non-Final)
80%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
916 granted / 1138 resolved
+15.5% vs TC avg
Moderate +12% lift
Without
With
+12.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
38 currently pending
Career history
1153
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
46.3%
+6.3% vs TC avg
§102
26.3%
-13.7% vs TC avg
§112
20.6%
-19.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1138 resolved cases

Office Action

§112
DETAILED ACTION Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 07/30/2026 has been entered. Applicant’s arguments, see Remarks, with respect to claims 1, 2, and 8-11 have been fully considered and are persuasive. Therefore, all previous prior art rejections have been withdrawn. 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. Claims 2 and 8-10 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. Claims 2 and 8-10 recites the limitation “the material including a silicon material”. There is insufficient antecedent basis for this limitation in the claim. Instant limitation was struck out in line 5 of claim 1. Allowable Subject Matter Claims 1 and 11 are allowed. Claims 2 and 8-10 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: no prior art was found teaching or disclosing the recited negative electrode material including a negative electrode active material, water-based binder and carbon nanotubes in the recited amounts and dimensions. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Cao et al. (US 2023/0187611) teaches a silicon composite material including silicon nanoparticles 1, carbon nanotubes 2, and silicon oxide, lithium oxide and lithium silicate 3 (Fig. 1). Any inquiry concerning this communication or earlier communications from the examiner should be directed to CARLOS BARCENA whose telephone number is (571)270-5780. The examiner can normally be reached Monday-Thursday 8-5 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, Tong Guo can be reached at (571)272-3066. 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. /CARLOS BARCENA/Primary Examiner, Art Unit 1723
Read full office action

Prosecution Timeline

Jun 22, 2023
Application Filed
Jan 16, 2026
Non-Final Rejection mailed — §112
Apr 16, 2026
Response Filed
Apr 30, 2026
Final Rejection mailed — §112
Jul 30, 2026
Request for Continued Examination
Jul 31, 2026
Response after Non-Final Action
Aug 12, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749719
ENERGY STORAGE DEVICE AND METHOD OF ASSEMBLY OF AN ENERGY STORAGE DEVICE
2y 10m to grant Granted Sep 29, 2026
Patent 12744244
ALKALI METAL ION-CONDUCTIVE SOLID ELECTROLYTE, METHOD FOR PRODUCING SAME, SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, METHOD FOR PRODUCING SAID SEPARATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
3y 3m to grant Granted Sep 22, 2026
Patent 12744239
METHODS OF MAKING LITHIUM ION CONDUCTING SULFIDE GLASS
3y 2m to grant Granted Sep 22, 2026
Patent 12744277
BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
3y 2m to grant Granted Sep 22, 2026
Patent 12738483
POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRIC APPARATUS
1y 1m to grant Granted Sep 15, 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
80%
Grant Probability
93%
With Interview (+12.3%)
2y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1138 resolved cases by this examiner. Grant probability derived from career allowance rate.

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