Prosecution Insights
Last updated: October 23, 2026
Application No. 18/773,617

SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL DEVICE

Non-Final OA §102
Filed
Jul 16, 2024
Priority
Jul 15, 2022 — continuation of PCTCN2022106071
Examiner
AKRAM, IMRAN
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Contemporary Amperex Technology Co., Limited
OA Round
1 (Non-Final)
65%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 65% of resolved cases
65%
Career Allowance Rate
635 granted / 983 resolved
At TC average
Strong +43% interview lift
Without
With
+43.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
48 currently pending
Career history
1042
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
41.1%
+1.1% vs TC avg
§102
32.6%
-7.4% vs TC avg
§112
19.7%
-20.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 983 resolved cases

Office Action

§102
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 § 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. Claims 1-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Jiang (WO 2021/108995 A1). Corresponding US Application 2022/0123366 A1 is used in lieu for translation and citation purposes. Regarding claims 1-5, Jiang discloses an apparatus comprising: a battery comprising positive electrode plate, negative electrode plate, and electrolyte (paragraph 80), wherein the electrolyte is an electrolytic solution comprising LiBF4, LiDFOB, and/or LiBOB (paragraph 39) and FEC and/or VC (paragraph 37) which are esters. Jiang discloses that the negative electrode can form an SEI (paragraph 35). Jiang discloses that the electrolyte salt is up to 20% mass percentage (paragraph 39) and that the additives are up to 10% (paragraph 38). It is the Office’s position that these values satisfy the claimed formulas pertaining to mass and that the values associated with properties of the device are met because the claimed materials are taught. Something which is old does not become patentable upon the discovery of a new property. See MPEP 2112 I. Regarding claims 6 and 7, Jiang discloses lithium hexafluorophosphate, lithium perchlorate, lithium hexafluoroarsenate, lithium bis(fluorosulfonyl)imide, lithium difluorophosphate, lithium difluorophosphate, and lithium tetrafluorooxalate phosphate (paragraph 39) up to 14% (paragraph 148). It is the Office’s position that these values satisfy the claimed formulas pertaining to mass. Regarding claims 8 and 9, Jiang discloses cyclic carbonates EC and PC (paragraph 30) and linear carbonates DEC and EMC (paragraph 31) and mass ratios between them from 25:75 to 32:68 (paragraph 5). Regarding claim 10, Jiang discloses a positive active material of LiNi0.5Co0.2Mn0.3O2 (paragraph 142). Regarding claims 11-15, Jiang discloses battery packs and modules (paragraph 91). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to IMRAN AKRAM whose telephone number is (571)270-3241. The examiner can normally be reached M-F 9a-5p. 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, Basia Ridley can be reached at 571-272-1453. 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. /IMRAN AKRAM/Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Jul 16, 2024
Application Filed
Sep 29, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12770891
PROTECTED COMPONENTS IN ELECTROCHEMICAL DEVICES
3y 5m to grant Granted Oct 20, 2026
Patent 12760236
SYSTEMS AND METHODS OF PRODUCING SYNTHESIS GAS AND BIO-OIL FROM BIOMASS
3y 8m to grant Granted Oct 13, 2026
Patent 12763413
Method of Sealing Pouch-Type Battery Case and Pouch-Type Secondary Battery
3y 4m to grant Granted Oct 13, 2026
Patent 12735650
DRYING FURNACE DEVICE OF GASIFIER CAPABLE OF AUTOMATICALLY ADJUSTING TEMPERATURE
2y 11m to grant Granted Sep 15, 2026
Patent 12731833
METHOD FOR MANUFACTURING A STEEL STRIP OR SHEET FOR A BATTERY CASE AND BATTERY CASE MADE THEREFROM
3y 1m to grant Granted Sep 08, 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
65%
Grant Probability
99%
With Interview (+43.1%)
3y 3m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 983 resolved cases by this examiner. Grant probability derived from career allowance rate.

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