Prosecution Insights
Last updated: May 29, 2026
Application No. 18/267,770

BATTERY CELL ASSEMBLY INCLUDING BUS BAR WITH FLAME BLOCKING MEMBER AND BATTERY CELL ASSEMBLY STRUCTURE

Non-Final OA §103§112
Filed
Jun 15, 2023
Priority
Jan 07, 2022 — RE 10-2022-0002978 +1 more
Examiner
RAYMOND, BRITTANY L
Art Unit
1722
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Energy Solution, Ltd.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
782 granted / 1014 resolved
+12.1% vs TC avg
Moderate +11% lift
Without
With
+10.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
21 currently pending
Career history
1043
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
81.0%
+41.0% vs TC avg
§102
5.0%
-35.0% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1014 resolved cases

Office Action

§103 §112
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 Objections Claim 4 is objected to because of the following informalities: line 4 should use, “overlapping”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 5 and 12 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 5 recites the limitation "the other surface" in line 5. There is insufficient antecedent basis for this limitation in the claim. Claim 12 recites the limitation "the other side surface" in line 10. There is insufficient antecedent basis for this limitation in the claim. Claim Rejections - 35 USC § 103 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1-4, 6, 8, 11, 12 and 16-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Choi (WO Publication 2021-201421, U.S. Patent Publication 2022/0302549 will be used as an English translation) in view of Ando (U.S. Patent Publication 2021/0384585). Regarding claim 1, Choi discloses a battery module comprising: a battery cell stack 120 in which a plurality of pouch-type battery cells are stack, a module frame 200 for housing the battery cell stack, and a busbar frame 140 on front and read openings of the module frame, wherein the busbar frame comprises a busbar 141 and a terminal busbar 142, and wherein the busbars attach to electrode leads 111 and 112 protruding from the ends of the battery module (Paragraphs 0043, 0046, 0053, 0055). As to claims 2 and 12, Choi shows in Fig. 4 that the battery cells are bidirectional and shows in Fig. 3 that the module frame 200 is quadrangular and covers four surfaces of the battery stack 120, which includes two sides, an upper surface and a lower surface. Regarding claim 6, Choi shows in Fig. 3 that the busbar 141 comprises an opening in the center. As to claim 8, Choi teaches a terminal busbar 142 (Paragraph 0055), which is shown in Fig. 3 to extend upward toward the upper portion of the module frame. Regarding claims 16-18, Choi discloses that the battery modules 100a and 100b can be arranged in a pack frame 1100, which can include a support member formed between side surface parts of the module frame 200 and the pack frame 1100; and mounting parts 310 for coupling the battery modules to the pack frame (Paragraphs 0043, 0082 and Fig. 10). Choi also discloses that the battery pack can be used in an electric vehicle (Paragraph 0083). Choi fails to disclose that a flame blocking member comprising a mesh net formed of a material with high rigidity and high heat resistance, such as copper or stainless steel, is integrally coupled to a body of the bus bar; and that the flame blocking member comprises a plurality of net structures. Regarding claims 1, 3 and 4, Ando discloses a battery module comprising a plurality of secondary batteries 11 within a module case comprising restraining plates and belts 102a, 102b, 102c; bus bars 104 connecting terminals of adjacent batteries; and first and second traps 12, 13 formed above and connected to the bus bars, wherein the traps are made of a mesh material (Paragraphs 0023, 0025, 0026, 0031, 0036, 0038, 0042). As to claim 11, Ando teaches that the mesh material can be copper or stainless steel (Paragraph 0033). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the present invention that the bus bars of Choi, including the openings in the middle, could be covered by a flame blocking mesh material because Ando teaches that this material traps sparks that exit the battery with exhaust gas and prevent fires from occurring. It also would have been obvious to one of ordinary skill in the art that the terminal bus bar of Choi could extend past the mesh material taught in Ando because Ando shows that the material does not need to extend to module covers as long as it covers the busbars. It would have been obvious to one of ordinary skill in the art that multiple mesh nets could be used to cover the busbars because Ando teaches that this improves the protection from sparks created by the battery cells. Finally, it would have been obvious to one of ordinary skill in the art that the material of the mesh could be copper or stainless steel because Ando teaches that this material absorbs sparks created by the batteries. Claim(s) 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Choi (WO Publication 2021-201421, U.S. Patent Publication 2022/0302549 will be used as an English translation) in view of Ando (U.S. Patent Publication 2021/0384585) as applied to claims 1-4, 6, 8, 11, 12 and 16-18 above, and further in view of Hashimoto (U.S. Patent Publication 2017/0331089). The teachings of Choi and Ando have been discussed in paragraph 6 above. Choi and Ando fail to disclose that the module cover comprises at least one venting hole in the upper cover portion. Regarding claim 13, Hashimoto discloses a battery module comprising: a plurality of pouch cells 10, a housing member 20 holding the pouch cells, output terminals 12 extending out of the front and rear ends of the module from the cells, and an exhaust port 22 on the upper side of the housing member for discharging gas (Paragraphs 0024, 0031, 0033). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the present invention that the battery module of Choi could comprise a venting hole at the upper surface because Hashimoto teaches that this allows for gas rising off of the batteries to exit the battery module quickly. Claim(s) 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Choi (WO Publication 2021-201421, U.S. Patent Publication 2022/0302549 will be used as an English translation) in view of Ando (U.S. Patent Publication 2021/0384585) and Hashimoto (U.S. Patent Publication 2017/0331089) as applied to claim 13 above, and further in view of Kim (U.S. Patent Publication 2019/0097192). The teachings of Choi, Ando and Hashimoto have been discussed in paragraphs 6 and 7 above. Choi, Ando and Hashimoto fail to disclose that the venting hole is covered by a flame arrestor mesh net. Regarding claim 14, Kim discloses a battery module 10 comprising: a battery cell 100 comprising a plurality of battery cells, a case frame 200 housing the battery cell, and a case cover 300 at the open ends of the case frame, wherein the case cover comprises a gas outlet that is covered by a mesh member 370 (Paragraphs 0032, 0038 and Figs. 2-3). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the present invention that the venting hole discussed in Hashimoto could be covered by a mesh material because Kim teaches that this extends the path of the exiting gas to prevent flames. Allowable Subject Matter Claims 5, 7, 9, 10 and 15 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 BRITTANY L RAYMOND whose telephone number is (571)272-6545. The examiner can normally be reached Monday-Friday 9 am-6 pm. 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, Niki Bakhtiari can be reached at 571-272-3433. 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. BRITTANY L. RAYMOND Primary Examiner Art Unit 1722 /BRITTANY L RAYMOND/Primary Examiner, Art Unit 1722
Read full office action

Prosecution Timeline

Jun 15, 2023
Application Filed
Mar 31, 2026
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12640399
LOCALIZED HIGH SALT CONCENTRATION ELECTROLYTE
12m to grant Granted May 26, 2026
Patent 12626941
ELECTROCHEMICAL CELL DEGRADATION MONITORING METHOD AND SYSTEM
3y 2m to grant Granted May 12, 2026
Patent 12620592
EPSILON-VOPO4 CATHODE PRODUCTION, AND APPLICATIONS THEREOF
2y 9m to grant Granted May 05, 2026
Patent 12612315
MULTI-ELEMENT CATHODE MATERIAL AND PREPARATION METHOD THEREOF, LITHIUM-ION BATTERY
1y 7m to grant Granted Apr 28, 2026
Patent 12609325
TRANSFER SHEET, TRANSFER METHOD AND METHOD FOR MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY
3y 8m to grant Granted Apr 21, 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

1-2
Expected OA Rounds
77%
Grant Probability
88%
With Interview (+10.7%)
2y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1014 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