Prosecution Insights
Last updated: October 02, 2026
Application No. 18/448,374

BATTERY AND ELECTRIC APPARATUS

Final Rejection §103
Filed
Aug 11, 2023
Priority
Aug 18, 2021 — CN 202110951260.7 +1 more
Examiner
AMPONSAH, OSEI K
Art Unit
1752
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Contemporary Amperex Technology Co., Limited
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
514 granted / 710 resolved
+7.4% vs TC avg
Strong +33% interview lift
Without
With
+33.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
39 currently pending
Career history
756
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
69.5%
+29.5% vs TC avg
§102
16.9%
-23.1% vs TC avg
§112
8.6%
-31.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 710 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 . Response to Amendment Upon consideration, the previous rejection of record was withdrawn in light of new amendments. However new rejection is applied to the amended claims. All changes made in the rejection are necessitated by the amendment. Response to Arguments Applicant’s arguments with respect to claim(s) 1-17 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over CN 215578941 U hereinafter Tang in view of CN205542990U hereinafter Jiang. Regarding Claim 1, Tang teaches a battery module [10] (see figure 2) comprising: a plurality of battery cells [12], wherein each battery cell is provided with a pressure relief valve [13] and the pressure relief valve is configured to be actuated and release internal pressure in the battery cell; and a fire-fighting tube (protective tube) [200] that is configured to accommodate a fire-fighting filler, wherein the fire-fighting tube [200] is disposed on a side of the plurality of battery cells that is provided with the pressure relief valve, and wherein the fire-fighting tube is provided with a discharge (drainage) opening [110] that is configured to discharge the fire-fighting filler toward the pressure relief valve when the pressure relief valve is actuated (see annotated figure 2 below, paragraphs 31-44). PNG media_image1.png 706 844 media_image1.png Greyscale Tang further teaches that the fire-fighting tube is provided with a discharge (drainage) opening [110] that is spaced out from the pressure relief valve (i.e., disposed in a staggered manner with the pressure relief mechanism) (paragraph 37). Therefore, it would have been obvious to one of ordinary skill in the art to form a discharge (drainage) opening disposed in a staggered manner with the pressure relief mechanism before the effective filing date of the claimed invention because Tang discloses that such configuration can form sufficient pressure relief space in the battery module (paragraph 37). Jian teaches that the exhaust pipe (fire-fighting tube) [4 and 5] can be staggered away from the gas vent [21] of the battery cell such that they are not in direct contact (see annotated figure below). PNG media_image2.png 402 724 media_image2.png Greyscale Applying a known technique to a known device (method or product) ready for improvement to yield predictable results is likely to be obvious. See KSR International Co. v. Teleflex Inc., 550 U.S._,_, 82 USPQ2cl 1385, 1395 - 97 (2007) (see MPEP § 2143, D.). Therefore, it would have been obvious to one of ordinary skill in the art to form such integrated structure for the exhaust system before the effective filing date of the claimed invention because Jiang discloses that such configuration can improve efficiency and stability of the assembled structure. Regarding Claims 2-7 and 16-17, Tang teaches that the fire-fighting tube (protective tube) [200] can be formed with a plurality of pipes (i.e., first pipe, second pipe, and third pipe connected with openings as claimed) (paragraph 21). Additionally, The Supreme Court decided that a claim can be proved obvious merely by showing that the combination of known elements was obvious to try. In this regard, the Supreme Court explained that " [w]hen there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill in the art has a good reason to pursue the known options within his or her technical grasp." An obviousness determination is not the result of a rigid formula disassociated from the consideration of the facts of the case. Indeed, the common sense of those skilled in the art demonstrates why some combinations would have been obvious where others would not. Therefore, choosing from a finite number of identified, predictable solutions, with a reasonable expectation for success, is likely to be obvious to a person if ordinary skill in the art. See KSR International Co. v. Teleflex Inc., 550 U.S._,_, 82 USPQ2d 1385, 1395 -97 (2007) (see MPEP § 2143 , E.). In addition, the exhaust pipe (fire-fighting tube) [4 and 5] can be staggered away from the gas vent [21] of the battery cell such that they are not in direct contact (see MPEP § 2143, D described above). Regarding Claims 8-9, Tang teaches that the fire-fighting tube is provided with a discharge (drainage) opening [110] that breaks open and release the fire-fighting filler (i.e., sealing member configured to be damaged when the pressure relief mechanism is actuated) (paragraph 35). Tang teaches a sealing member that breaks from high-pressure gas (i.e., made from a thermosensitive material). Regarding Claim 10, Tang teaches that the battery cell further comprises a side wall, wherein an outer surface of the side wall is provided with a groove, and the pressure relief valve [13] is disposed in the groove (see figure 2, paragraphs 32-34). Regarding Claims 11-13, Tang teaches that the fire-fighting tube [200] can be in contact or spaced apart from the surface of the battery cell provided with the pressure relief valve (paragraphs 36-37, see figure 4). Regarding Claim 14, Tang teaches a flexible fire-fighting tube [200] (paragraph 43). Regarding Claim 15, Tang teaches that the battery module is configured to provide electrical energy for an electric apparatus (paragraphs 1-3). Claim(s) 1 and 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over CN 215537954 U hereinafter Zhang in view of CN205542990U hereinafter Jiang.. Regarding Claim 1, Zhang teaches a battery module comprising: a plurality of battery cells [21], wherein each battery cell is provided with a explosion-proof valve [213] and the explosion-proof valve is configured to be actuated and release internal pressure in the battery cell; and a fire extinguishing tube [11] that is configured to accommodate a fire extinguishing agent, wherein fire extinguishing tube is disposed on a side of the plurality of battery cells that is provided with the explosion-proof valve, and wherein the fire extinguishing tube is provided with an interface (discharge opening) [13] that is configured to discharge the fire extinguishing agent toward the explosion-proof valve when the explosion-proof valve is actuated (see annotated figure 2 below, paragraphs 31-47). PNG media_image3.png 451 726 media_image3.png Greyscale Zhang further teaches that the fire extinguishing tube [11] is provided with an interface (discharge opening) [13] that is spaced out from the explosion-proof valve (i.e., disposed in a staggered manner with the pressure relief mechanism) (paragraph 34, 48). Therefore, it would have been obvious to one of ordinary skill in the art to form a discharge opening disposed in a staggered manner with the pressure relief mechanism before the effective filing date of the claimed invention because Zhang discloses that such configuration can effectively release pressure from the battery cells (paragraphs 9-10). Jian teaches that the exhaust pipe (fire-fighting tube) [4 and 5] can be staggered away from the gas vent [21] of the battery cell such that they are not in direct contact (see annotated figure below). PNG media_image2.png 402 724 media_image2.png Greyscale Applying a known technique to a known device (method or product) ready for improvement to yield predictable results is likely to be obvious. See KSR International Co. v. Teleflex Inc., 550 U.S._,_, 82 USPQ2cl 1385, 1395 - 97 (2007) (see MPEP § 2143, D.). Therefore, it would have been obvious to one of ordinary skill in the art to form such integrated structure for the exhaust system before the effective filing date of the claimed invention because Jiang discloses that such configuration can improve efficiency and stability of the assembled structure. Regarding Claim 15, Zhang teaches that the battery module is configured to provide electrical energy for an electric apparatus (paragraph 2). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to OSEI K AMPONSAH whose telephone number is (571)270-3446. The examiner can normally be reached Monday - Friday, 8:00 am - 5:00 pm 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, NICHOLAS A SMITH can be reached at (571)272-8760. 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. /OSEI K AMPONSAH/ Primary Examiner, Art Unit 1752
Read full office action

Prosecution Timeline

Aug 11, 2023
Application Filed
Feb 25, 2026
Non-Final Rejection mailed — §103
May 19, 2026
Response Filed
Aug 11, 2026
Final Rejection mailed — §103
Sep 24, 2026
Applicant Interview (Telephonic)
Sep 29, 2026
Examiner Interview Summary
Sep 30, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749715
NON-AQUEOUS ELECTROLYTE AND SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL DEVICE CONTAINING THE SAME
3y 2m to grant Granted Sep 29, 2026
Patent 12731811
Battery Module Including Foldable Side Plate and Method for Manufacturing Same
5y 9m to grant Granted Sep 08, 2026
Patent 12725834
HIGH-CONCENTRATION HIGH-ENTROPY ELECTROLYTE, METHOD FOR PREPARING THE SAME, AND BATTERY
2y 8m to grant Granted Sep 01, 2026
Patent 12725835
ELECTROLYTE SYSTEMS INCLUDING PERFORMANCE-ENHANCING ADDITIVES, AND ELECTROCHEMICAL CELLS INCLUDING THE SAME
1y 3m to grant Granted Sep 01, 2026
Patent 12719091
METHOD OF IMPROVING FIRE-RESISTANCE OF A LITHIUM BATTERY
8y 3m to grant Granted Aug 25, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
72%
Grant Probability
99%
With Interview (+33.1%)
3y 3m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 710 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month