Prosecution Insights
Last updated: April 19, 2026
Application No. 18/265,352

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Non-Final OA §103
Filed
Jun 05, 2023
Examiner
RHEE, JANE J
Art Unit
1724
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Panasonic Energy Co., Ltd.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
98%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
954 granted / 1110 resolved
+20.9% vs TC avg
Moderate +12% lift
Without
With
+12.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
32 currently pending
Career history
1142
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
43.0%
+3.0% vs TC avg
§102
41.5%
+1.5% vs TC avg
§112
3.7%
-36.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1110 resolved cases

Office Action

§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 . 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. 1. Claim(s) 1-3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Koike et al. (WO2017014147) in view of Emoto et al (JP2014056834). As to claim 1,3, Koike et al. discloses a non-aqueous electrolyte secondary battery comprising (page 2): a wound electrode assembly in which a positive electrode and a negative electrode are wound with a separator interposed therebetween (page 2); and a non-aqueous electrolyte, wherein the separator includes a porous substrate and in a case where the separator is divided into five regions in a width direction and the five divided regions are defined as a region A positioned at one end of the separator in the width direction, a region B positioned at the other end of the separator in the width direction, a region C positioned at the center portion of the separator in the width direction, a region D positioned between the region A and the region C, and a region E positioned between the region B and the region C, a porosity of each of the region D and the region E is larger than a porosity of each of the region A, the region B and the region C (figure 3c number R1-R3, pages 7-8). Koike et al. fail to disclose a heat-resistant porous layer disposed on the porous substrate and facing at least one of the positive electrode and the negative electrode. Emoto et al. teaches a heat-resistant porous layer disposed on the porous substrate and facing at least one of the positive electrode and the negative electrode for the purpose of providing a separator that can be excellent in liquid permeability (abstract and paragraph 0007). Therefore it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Koike et al. with a heat-resistant porous layer disposed on the porous substrate and facing at least one of the positive electrode and the negative electrode for the purpose of providing a separator that can be excellent in liquid permeability (abstract and paragraph 0007). As to claim 2, Koike et al. discloses wherein the region D is positioned at greater than or equal to 30% and less than or equal to 90% of a width from the one end to the center portion of the separator in the width direction, and the region E is positioned at greater than or equal to 30% and less than or equal to 90% of a width from the other end to the center portion of the separator in the width direction (figure 3c number R1 are region D and E). Koike et al. fail to disclose wherein the heat-resistant porous layer faces at least the positive electrode. Emoto et al. teaches wherein the heat-resistant porous layer faces at least the positive electrode for the purpose of providing a separator that can be excellent in liquid permeability (abstract and paragraph 0007). Therefore , it would have been obvious to one having ordinary skill in the art at the time applicant's invention was made to provide Koike et al. with wherein the heat-resistant porous layer faces at least the positive electrode for the purpose of providing a separator that can be excellent in liquid permeability (abstract and paragraph 0007). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JANE J RHEE whose telephone number is (571)272-1499. The examiner can normally be reached Monday-Friday (10-6:30). 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, Miriam Stagg can be reached at 571-270-5256. 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. /JANE J RHEE/ Primary Examiner, Art Unit 1724
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Prosecution Timeline

Jun 05, 2023
Application Filed
Dec 18, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603392
SQUARE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
2y 5m to grant Granted Apr 14, 2026
Patent 12597634
PRODUCING METHOD FOR LITHIUM-ION SECONDARY BATTERY
2y 5m to grant Granted Apr 07, 2026
Patent 12592437
SQUARE TYPE BATTERY AND MANUFACTURING METHOD OF SQUARE TYPE BATTERY
2y 5m to grant Granted Mar 31, 2026
Patent 12562419
BUTTON-TYPE SECONDARY BATTERY
2y 5m to grant Granted Feb 24, 2026
Patent 12548826
EXTERIOR MATERIAL FOR POWER STORAGE DEVICE, METHOD FOR MANUFACTURING SAME, AND POWER STORAGE DEVICE
2y 5m to grant Granted Feb 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
86%
Grant Probability
98%
With Interview (+12.4%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1110 resolved cases by this examiner. Grant probability derived from career allow rate.

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