Prosecution Insights
Last updated: April 19, 2026
Application No. 18/211,099

BATTERY AND ELECTRIC APPARATUS

Non-Final OA §103
Filed
Jun 16, 2023
Examiner
SLIFKA, SARAH A
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
86%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
522 granted / 694 resolved
+10.2% vs TC avg
Moderate +11% lift
Without
With
+11.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
14 currently pending
Career history
708
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
52.2%
+12.2% vs TC avg
§102
19.3%
-20.7% vs TC avg
§112
22.5%
-17.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 694 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 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 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. Claim(s) 1-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Tang et al (CN106654450). Regarding claim 1, Tang teaches a battery comprising a plurality of battery cells 2, wherein a liquid-cooling heat exchange sheet 4 is arranged upright between two battery cell columns. The liquid-cooling heat exchange sheet 4 is provided with a water intake connector 41 and a water output connector 42. Each water intake connector 41 is connected to a main water intake connector 51 by means of a connecting pipe 53. A liquid flow channel is provided in a liquid-cooling heat exchange sheet 4 body. The liquid flow channel comprises a vertical flow channel 46 which is in communication with the water intake connector, and a plurality of horizontal flow channels 48 are arranged at intervals, wherein the vertical flow channel 46 and the horizontal flow channels 48 are in communication with each other. The battery is use in a vehicle (abstract, paragraphs 0005-0039, figures 1-4). Tang does not explicitly teach the cooling pipe having a plurality of outlets. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide a plurality of outlets in the cooling pipe to supply water to the liquid-cooling heat exchange sheet as such would be obvious to try and an ordinarily skilled artisan would consider this a known means of configuring a cooling pipe without undue experimentation and with a reasonable expectation of success. Regarding claim 2, Tang teaches the liquid flow channel comprises a vertical flow channel 46 which is in communication with the water intake connector, and a plurality of horizontal flow channels 48 are arranged at intervals, wherein the vertical flow channel 46 and the horizontal flow channels 48 are in communication with each other (abstract, paragraphs 0005-0039, figures 1-4). Regarding claim 3, Tang teaches a plurality of horizontal flow channels 48 are arranged at intervals, wherein the vertical flow channel 46 and the horizontal flow channels 48 are in communication with each other (abstract, paragraphs 0005-0039, figures 1-4). Regarding claim 4, Tang teaches the battery as discussed above. Tang does not explicitly teach the exhaust channel being between two adjacent second flow channels. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to place the exhaust channel anywhere within the system depending upon design choice and an ordinarily skilled artisan would consider this obvious to try without undue experimentation and with a reasonable expectation of success. Regarding claim 5, Tang teaches the liquid flow channel comprises a vertical flow channel 46 which is in communication with the water intake connector, and a plurality of horizontal flow channels 48 are arranged at intervals, wherein the vertical flow channel 46 and the horizontal flow channels 48 are in communication with each other (abstract, paragraphs 0005-0039, figures 1-4). Regarding claim 6, Tang teaches the battery as discussed above. Tang does not explicitly teach the flow channel configuration, including a third flow channel, as claimed. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to include a third flow channel as an ordinarily skilled artisan would consider this obvious to try insofar as multiple flow channels are taught and a third would be reasonably obvious without undue experimentation and with a reasonable expectation of success. Regarding claim 7, Tang teaches the battery as discussed above. Tang does not explicitly teach through holes, as claimed. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to include through holes in the heat exchange pad as an ordinarily skilled artisan would consider this obvious to try without undue experimentation and with a reasonable expectation of success. Regarding claim 8, Tang teaches the battery as discussed above. In the event any differences can be shown for the product of the product-by-process claim 8, as opposed to the product taught by the reference Tang, such differences would have been obvious to one of ordinary skill in the art as a routine modification of the product in the absence of a showing of unexpected results; see also In re Thorpe, 227 USPQ 964 (CAFC 1985). When the prior art discloses a product which reasonably appears to be either identical with or only slightly different than a product claimed in a product-by-process claim, a rejection based alternatively on either section 102 or 103 of the statute is appropriate. As a practical matter, the Patent and Trademark Office is not equipped to manufacture products by the myriad of processes put before it and then obtain prior art products and make physical comparisons therewith. A lesser burden of proof is required to make out a case of prima facie obviousness for product-by-process claims because of their particular nature than when a product is claimed in the conventional fashion. In re Brown, 59 CCPA 1063, 173 USPQ 685 (1972); In re Fessmann, 180 USPQ 324 (CCPA 1974). Regarding claim 9, Tang teaches a battery comprising a plurality of battery cells 2, wherein a liquid-cooling heat exchange sheet 4 is arranged upright between two battery cell columns. The liquid-cooling heat exchange sheet 4 is provided with a water intake connector 41 and a water output connector 42, as discussed above (abstract, paragraphs 0005-0039, figures 1-4). Tang does not explicitly teach a flexible connector. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to utilize a flexible connector as such is extremely well known in the art and an ordinarily skilled artisan would consider this obvious to try without undue experimentation and with a reasonable expectation of success. Regarding claim 10, Tang teaches the battery as discussed above. Tang does not explicitly teach the use of thermal sensitive seals, as claimed. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to utilize thermal sensitive seals, as such is extremely well known in the art and an ordinarily skilled artisan would consider this obvious to try without undue experimentation and with a reasonable expectation of success. Regarding claim 11, Tang teaches the battery as discussed above. Tang does not explicitly teach an explosion proof valve, as claimed. However, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to utilize an explosion proof valve, configured as claimed, as such is extremely well known in the art and an ordinarily skilled artisan would consider this obvious to try without undue experimentation and with a reasonable expectation of success. Regarding claim 12, Tang teaches the battery to be used to power a vehicle (abstract, and 0005). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Wang et al (CN112448066) teaches a liquid-flow circulation cooling system located in a battery box. The liquid-flow circulation cooling system comprises a liquid cooling plate which has a hollow structure and is located in a top face of the battery box, wherein a flow discharge port is provided in the bottom of the liquid cooling plate, and the flow discharge port is blocked by a thermosensitive component, such that a cooling liquid enters the battery box after the thermosensitive component is melted at a high temperature (0005-0036 and figures 1-2). Any inquiry concerning this communication or earlier communications from the examiner should be directed to SARAH A SLIFKA whose telephone number is (571)270-5838. The examiner can normally be reached Monday-Friday 9am-5:30pm EST. 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, Curtis Mayes can be reached at 571-272-1234. 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. /SARAH A. SLIFKA/Primary Examiner, Art Unit 1759 February 13, 2026
Read full office action

Prosecution Timeline

Jun 16, 2023
Application Filed
Feb 13, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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CIRCUIT STRUCTURE, BATTERY, AND ELECTRONIC DEVICE
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Patent 12586821
LEAD-ACID BATTERY
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Patent 12586776
LEAD-ACID BATTERY
2y 5m to grant Granted Mar 24, 2026
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2y 5m to grant Granted Mar 24, 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
75%
Grant Probability
86%
With Interview (+11.3%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 694 resolved cases by this examiner. Grant probability derived from career allow rate.

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