Prosecution Insights
Last updated: July 17, 2026
Application No. 18/523,933

METHOD AND DEVICE FOR CHARGING SECONDARY BATTERY, COMPUTER STORAGE MEDIUM, AND ELECTRONIC EQUIPMENT

Non-Final OA §102
Filed
Nov 30, 2023
Priority
Nov 23, 2021 — continuation of PCTCN2021132512
Examiner
MIKELS, MATTHEW
Art Unit
Tech Center
Assignee
Contemporary Amperex Technology Co., Limited
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
1062 granted / 1312 resolved
+20.9% vs TC avg
Strong +20% interview lift
Without
With
+20.3%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
41 currently pending
Career history
1328
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
61.0%
+21.0% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
0.7%
-39.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1312 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 . Claims 1-14 are pending. Claim Rejections - 35 USC § 102 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 1-3, 10 and 13-14 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zou, et al. (English machine translation of CN 108110349A, herein Zou).1 2 Regarding claims 1, 10 and 13-14, Zou teaches a charging method, charging device, non-transitory computer-readable storage medium, and electronic equipment for a secondary battery, comprising: sending, by a battery management system (BMS), first charge information to a charging source, wherein the first charge information comprises a first charge power (paragraph 76); performing, by the charging source, a constant-power charging on the secondary battery according to the first charge power (paragraph 90-c); sending, by the BMS, a plurality of pulse discharge information to the charging source when a battery status parameter reaches a first predetermined value, wherein each pulse discharge information comprises a discharge power and a discharge duration (paragraph 88); and performing, by the charging source, multiple constant-power pulse discharges on the secondary battery according to the discharge power and the discharge duration in the plurality of pulse discharge information (paragraph 91). Regarding claim 2, Zou teaches the battery status parameter comprises a state of charge (SOC) of the secondary battery (paragraph 77). Regarding claim 3, Zou teaches the first predetermined value is above 50% SOC (paragraph 88). Allowable Subject Matter Claims 4-9 and 11-12 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW MIKELS whose telephone number is (571)270-5470. The examiner can normally be reached Monday to Thursday 7:30 AM ET - 5:00 PM ET, Friday 7:30 AM ET - 9:30 AM ET, the Examiner is on central time.3 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, Thomas K Pham can be reached at 571-272-3689. 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. /MATTHEW MIKELS/Primary Examiner, Art Unit 2876 1 A copy of the machine translation is attached to this Office Action. A copy of the original Chinese reference is also attached. Note that paragraph numbers have been added to the machine translation for ease of citation. 2 In addition to the cited portions, please see also the associated figures. 3 The Examiner can also be reached at matthew.mikels@uspto.gov.
Read full office action

Prosecution Timeline

Nov 30, 2023
Application Filed
Jul 09, 2026
Non-Final Rejection mailed — §102 (current)

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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
81%
Grant Probability
99%
With Interview (+20.3%)
2y 2m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1312 resolved cases by this examiner. Grant probability derived from career allowance rate.

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