Prosecution Insights
Last updated: April 19, 2026
Application No. 18/664,283

SECONDARY BATTERY

Non-Final OA §DP
Filed
May 15, 2024
Examiner
NEDIALKOVA, LILIA V
Art Unit
1724
Tech Center
1700 — Chemical & Materials Engineering
Assignee
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
OA Round
3 (Non-Final)
55%
Grant Probability
Moderate
3-4
OA Rounds
3y 4m
To Grant
77%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allow Rate
233 granted / 423 resolved
-9.9% vs TC avg
Strong +22% interview lift
Without
With
+21.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
53 currently pending
Career history
476
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
46.7%
+6.7% vs TC avg
§102
23.3%
-16.7% vs TC avg
§112
22.4%
-17.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 423 resolved cases

Office Action

§DP
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 January 13, 2026 has been entered. Claims 1, 7-9, and 14 are currently amended. Claims 5, 6, 12 and 13 are canceled. Claims 1, 2, 4, 7-11 and 14-20 are pending review in this action. Terminal Disclaimer The terminal disclaimer filed on January 13, 2026 does not comply with 37 CFR 1.321 because the instant application number and the applicant’s name are unreadable. Applicant is invited to correct and resubmit the terminal disclaimer. No new fee is required. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1, 2, 4, 7-11 and 14-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-9 of U.S. Patent No.12,021,268 in view of Japanese Patent Publication No. 2016-162744, hereinafter Ohara. Claims 1-9 of U.S. Patent No. 12,021,268 include all of the limitations of instant claims 1, 2 and 4-20 except for requiring that the second part, the third part and the fourth part do not cover any portion of the electrode lead in the thickness direction. Ohara teaches an analogous battery including a second part, a third part and a fourth part that do not cover any portion of the electrode lead in the thickness direction (Figure 1 above). Therefore, it would have been obvious to include the claimed third part and fourth part without undue experimentation and with a reasonable expectation of success. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LILIA V NEDIALKOVA whose telephone number is (571)270-1538. The examiner can normally be reached 8.30 - 5.00 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, 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. /STEWART A FRASER/Primary Examiner, Art Unit 1724 LILIA V. NEDIALKOVA Examiner Art Unit 1724
Read full office action

Prosecution Timeline

May 15, 2024
Application Filed
Mar 08, 2025
Non-Final Rejection — §DP
Jun 11, 2025
Response Filed
Oct 06, 2025
Final Rejection — §DP
Dec 15, 2025
Response after Non-Final Action
Jan 13, 2026
Request for Continued Examination
Jan 15, 2026
Response after Non-Final Action
Feb 21, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603277
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF PREPARING THE SAME
2y 5m to grant Granted Apr 14, 2026
Patent 12586818
DEXTRIN-DADMAC BASED DOUBLE NETWORK POLYMER GEL ELECTROLYTE, METHOD FOR PREPARING THE SAME AND ENERGY STORAGE DEVICE INCLUDING THE SAME
2y 5m to grant Granted Mar 24, 2026
Patent 12580252
Pouch-Type Battery Case and Pouch-Type Secondary Battery
2y 5m to grant Granted Mar 17, 2026
Patent 12531310
SEPARATOR FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
2y 5m to grant Granted Jan 20, 2026
Patent 12476277
SOLID ELECTROLYTE, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE SOLID ELECTROLYTE
2y 5m to grant Granted Nov 18, 2025
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
55%
Grant Probability
77%
With Interview (+21.9%)
3y 4m
Median Time to Grant
High
PTA Risk
Based on 423 resolved cases by this examiner. Grant probability derived from career allow rate.

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