Prosecution Insights
Last updated: July 17, 2026
Application No. 18/345,261

BATTERY, ELECTRIC APPARATUS, AND METHOD AND APPARATUS FOR PREPARING BATTERY

Non-Final OA §102
Filed
Jun 30, 2023
Priority
Nov 30, 2021 — continuation of PCTCN2021134386
Examiner
CHAN, HENG M
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Contemporary Amperex Technology Co., Limited
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
5m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
244 granted / 401 resolved
-4.2% vs TC avg
Strong +33% interview lift
Without
With
+33.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
13 currently pending
Career history
416
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
81.2%
+41.2% vs TC avg
§102
6.0%
-34.0% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 401 resolved cases

Office Action

§102
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 . Status of Application Claims 1-15 are pending and presented for examination on the merit. 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, 2, 10, and 12-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CN 109585726 to Cao et al. (cited by Applicant; machine translation provided for citation). Regarding claim 1, Cao et al. teaches a battery, comprising: multiple battery cells 2 arranged in a first direction, wherein each battery cell is provided with a pressure relief mechanism or explosion-proof valve 25, the pressure relief mechanism being configured to be actuated in response to internal pressure or temperature of the battery cell reaching a threshold, to relieve the internal pressure (Figs. 1 and 6; [0103]); a fire-extinguishing pipe or fire extinguishing container 3 configured to accommodate a fire-extinguishing medium, wherein the fire-extinguishing pipe is configured to release the fire-extinguishing medium during actuation of the pressure relief mechanism (Figs. 1-7; [0104]; [0107]); a restraining member including end plate 1 disposed at an end of the multiple battery cells along the first direction, wherein the restraining member is configured to restrain the multiple battery cells in the first direction (Figs. 1 and 6; [0103]; [0108]); and a fastener attached to a surface of the restraining member facing toward the fire-extinguishing pipe, wherein the fastener is configured to fasten the fire-extinguishing pipe, the fastener including a connecting surface having fixing hole 35 (Figs. 1 and 6; [0020]; [0034]; [0048]; [0062]; [0072]; [0108]) and a bond that bonds the fire extinguishing container 3 to the end plate 1 ([0108]; [0118]). Below if Fig. 1 of Cao et al. PNG media_image1.png 435 444 media_image1.png Greyscale Regarding claim 2, the connecting surface having the fixing hole 35 corresponds to the claimed connecting structure configured to be fixedly connected to the restraining member or end plate 1, and the bond corresponds to the claimed limiting structure configured to limit the fire extinguishing container 3 as it limits the position change of the fire extinguishing container 3. Regarding claim 10, the limiting structure or the bond comprises a limiting portion that is configured to limit a position of the fire extinguishing container 3 in the first direction as the bond fixes the position of the fire extinguishing container 3 (Figs. 1 and 6; [0108]; [0118]). Regarding claim 12, the connecting structure or the connecting surface having the fixing hole 35 is fixedly connected to the restraining member or end plate 1 via fixing members such as welds resulted from laser welding ([0108]). Regarding claim 13, Cao et al. teaches an electric apparatus, e.g. a vehicle, comprising the battery according to claim 1, wherein the battery is configured to supply electric energy to the electric apparatus ([0002]; [0007]). Regarding claim 14, Cao et al. envisions a method for preparing a battery, comprising: providing multiple battery cells 2, wherein the multiple battery cells are arranged in a first direction, and each battery cell is provided with a pressure relief mechanism or explosion-proof valve 25, the pressure relief mechanism being configured to be actuated in response to internal pressure or temperature of the battery cell reaching a threshold, to relieve the internal pressure (Figs. 1 and 6; [0103]); providing a fire-extinguishing pipe or fire extinguishing container 3 configured to accommodate a fire-extinguishing medium, wherein the fire-extinguishing pipe is configured to release the fire-extinguishing medium during actuation of the pressure relief mechanism (Figs. 1-7; [0104]; [0107]); providing a restraining member including end plate 1 disposed at an end of the multiple battery cells along the first direction, wherein the restraining member is configured to restrain the multiple battery cells in the first direction (Figs. 1 and 6; [0103]; [0108]); and providing a fastener attached to a surface of the restraining member facing toward the fire-extinguishing pipe, wherein the fastener is configured to fasten the fire-extinguishing pipe, the fastener including a connecting surface having fixing hole 35 (Figs. 1 and 6; [0020]; [0034]; [0048]; [0062]; [0072]; [0108]) and a bond that bonds the fire extinguishing container 3 to the end plate 1 ([0108]; [0118]). Regarding claim 15, Cao et al. envisions apparatus for preparing a battery, comprising: a providing module configured to: provide multiple battery cells 2, wherein the multiple battery cells are arranged in a first direction, and each battery cell is provided with a pressure relief mechanism or explosion-proof valve 25, the pressure relief mechanism being configured to be actuated in response to internal pressure or temperature of the battery cell reaching a threshold, to relieve the internal pressure (Figs. 1 and 6; [0103]); provide a fire-extinguishing pipe or fire extinguishing container 3 configured to accommodate a fire-extinguishing medium, wherein the fire-extinguishing pipe is configured to release the fire-extinguishing medium during actuation of the pressure relief mechanism (Figs. 1-7; [0104]; [0107]); provide a restraining member including end plate 1 disposed at an end of the multiple battery cells along the first direction, wherein the restraining member is configured to restrain the multiple battery cells in the first direction (Figs. 1 and 6; [0103]; [0108]); and provide a fastener attached to a surface of the restraining member facing toward the fire-extinguishing pipe, wherein the fastener is configured to fasten the fire-extinguishing pipe, the fastener including a connecting surface having fixing hole 35 (Figs. 1 and 6; [0020]; [0034]; [0048]; [0062]; [0072]; [0108]) and a bond that bonds the fire extinguishing container 3 to the end plate 1 ([0108]; [0118]). Allowable Subject Matter Claims 3-9 and 11 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. The closest prior art of record, Cao et al., does not teach the claimed first limiting portion and second limiting portion of claim 3. Although Applicant’s cited art, CN 207117140 to Qi (machine translation provided for citation), demonstrates a known fixing clamp including a clamp seat (a first limiting portion) and a clamp cover (a second limiting portion) that fit with each other and form a through hole through which a cable passes (Fig. 1; [0015]; [0037]), it would not have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have modified the fastener of Cao et al. with the clamp of Qi, because Qi’s model relates to the field of cable installation and fixing clamps in the context of tunnel and subway construction ([0001-7]), which is a different field of endeavor than the current application, and the modification would have involved hindsight to replace the fastener of Cao with the clamp with Qi at the specified location of the battery as claimed. Accordingly, claims 4-9 also contain the allowable subject matter as they depend on claim 3. Furthermore, Cao et al. does not teach the claimed support portion and blocking portion of claim 11 as the prior art limiting portion is a bond formed from, for example, laser welding ([0108]). Search did not yield a reference teaching the claimed features or providing a motivation to modify. As a result, the limitation of claim 11 is indicated allowable. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HENG M CHAN whose telephone number is (571)270-5859. The examiner can normally be reached 9 am - 5:30 pm on Monday, 9 am - 3 pm on Tuesday, and 9 am to 1 pm on Wednesday and Thursday. 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. /Heng M. Chan/Examiner, Art Unit 1725 /Sean P Cullen, Ph.D./Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Jun 30, 2023
Application Filed
May 12, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12683164
NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY
3y 6m to grant Granted Jul 14, 2026
Patent 12683200
BATTERY PACK
3y 6m to grant Granted Jul 14, 2026
Patent 12614739
MEMBER FOR FUEL CELL AND METHOD FOR MANUFACTURING SAME
3y 1m to grant Granted Apr 28, 2026
Patent 12609412
POLYETHYLENE MICROPOROUS MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND SEPARATOR INCLUDING MICROPOROUS MEMBRANE
1y 11m to grant Granted Apr 21, 2026
Patent 12573696
SECONDARY BATTERY
3y 3m to grant Granted Mar 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
61%
Grant Probability
94%
With Interview (+33.2%)
3y 5m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 401 resolved cases by this examiner. Grant probability derived from career allowance rate.

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