Prosecution Insights
Last updated: April 19, 2026
Application No. 17/800,745

Battery Module and Manufacturing Method Thereof

Final Rejection §103
Filed
Aug 18, 2022
Examiner
YOON, KEVIN E
Art Unit
1735
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Energy Solution, Ltd.
OA Round
2 (Final)
59%
Grant Probability
Moderate
3-4
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
392 granted / 663 resolved
-5.9% vs TC avg
Strong +44% interview lift
Without
With
+43.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
36 currently pending
Career history
699
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
52.5%
+12.5% vs TC avg
§102
24.1%
-15.9% vs TC avg
§112
17.8%
-22.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 663 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 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) 4-9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sora (US 2015/0372260 A1, cited by applicant) in view of Tanabe et al. (JP 3849206 B2, hereinafter Tanabe, previously cited). Re Claim 4. Sora teaches a battery module (Fig. 9, item 2) comprising: a battery cell stack (item 30) in which a plurality of battery cells (items 10A-10D) are stacked; and a first L-shaped frame (item 210) and a second L-shaped frame (item 110) that together house the battery cell stack therein, the first L-shaped frame formed of an upper surface (item 211) and a first side surface (item 212), and the second L-shaped frame formed of a lower surface (item 111) and a second side surface (item 112), wherein the first L-shaped frame and the second L-shaped frame together surround four surfaces of the battery cell stack (Fig. 9). Sora fails to teach that a protrusion portion is formed in one of the first or second L-shaped frames, a groove portion is formed at a position corresponding to the protrusion portion another of the first or second L-shaped frames, the first and second L-shaped frames are coupled to one another by an engagement between the protrusion portion and the groove portion, and the engagement of the protrusion portion and the groove portion is formed between a plurality of surfaces coupled by welding the first L-shaped frame and the second L-shaped frame. The invention of Tanabe encompasses case for battery pack. Tanabe teaches that a protrusion portion (Fig. 1, item 122) is formed in the upper frame (item 120), a groove portion (item 136) is formed at a position corresponding to the protrusion portion in the lower frame (item 130), the upper and lower frames are coupled to one another by an engagement between the protrusion portion and the groove portion (Fig. 2), and the engagement of the protrusion portion and the groove portion is formed between a plurality of surfaces coupled by welding the first case and the second case (Fig. 5, para. 21). In view of Tanabe, it would have been obvious to one of ordinary skill in the art at the time of invention to modify the invention of Sora to employ a protrusion portion formed in the first L-shaped frame and a groove portion is formed at a position corresponding to the protrusion portion in the second L-shaped frames, and form the engagement of the protrusion portion and the groove portion between a plurality of surfaces coupled by welding the first L-shaped frame and the second L-shaped frame, since Tanabe teaches the advantages of using them (para. 26) Re Claim 5. The combination teaches wherein: the first L-shaped frame has a first raised portion (Sora, Fig. 9, item 213) protruding downward from a side end edge of the upper surface of the first L-shaped frame, the first raised portion being engaged with an upper end portion of the second side surface of the second L-shaped frame (Fig. 2), and the second L-shaped frame has a second raised portion (item 113) protruding upward from a side end edge of the lower surface of the second L-shaped frame, the second raised portion being engaged with a lower end portion of the first side surface of the first L-shaped frame (Fig. 2). Re Claim 6. The combination teaches wherein: the protrusion portion (Tanabe, Fig. 1, item 122) is a first protrusion portion protruding from the first raised portion (Sora, Fig. 9, item 213), and the groove portion (Tanabe, Fig. 1, item 136) is a first groove portion extending into formed on the upper end portion of the second side surface (Sora, Fig. 9, item 112), and the first and second L-shaped frames are coupled to one another while the protrusion portions and the groove portions are coupled to one another (Tanabe, Fig. 2). The combination fails to teach that the second raised portion has a second protruding portion protruding therefrom, and the first side surface has a second groove portion extending into the lower end portion of the first side surface, as Tanabe teaches that the protrusions are located on the upper frame and the grooves are located on the lower frame. However, as Sora teaches that the first and second L-shaped frames have the same shape (para. 43), it would have been obvious to one of ordinary skill in the art at the time of invention to modify the invention of Sora in view of Tanabe to employ the second raised portion having a second protruding portion protruding therefrom, and the first side surface having a second groove portion extending into the lower end portion of the first side surface. Re Claim 7. The combination teaches wherein: the first and second protrusion portions protrude from the outer edge portion of the first and second raised portions, respectively (Tanabe, Fig. 2). Re Claim 8. Tanabe teaches two protrusions and two grooves (Fig. 1), but fails to teach three protrusions and grooves at a center and both opposite sides. However, it would have been obvious to one of ordinary skill in the art at the time of invention to modify the invention of Sora in view of Tanabe to have each of the first and second protrusion portions includes protrusions extending from a center and both opposite sides of the first and second raised portions, respectively, and each of the first and second groove portions includes grooves located at positions engaged with the respective protrusion portions, using additional protrusions and grooves would be within purview of one skill in the art. Mere duplication of parts has no patentable significance unless a new and unexpected result is produced. See MPEP 2144.04. VI. Re Claim 9. The combination teaches wherein: a lower surface of the first raised portion and an upper end surface of the second side surface, and an upper surface of the second raised portion and a lower end surface of the first side surface are joined by welding, respectively (Tanabe, para. 14-16). Response to Arguments Applicant's arguments filed 10/2/25 have been fully considered but they are not persuasive. On page 8, regarding claim 4, applicant argued that none of the cited references teach that the engagement of the protrusion portion and the groove portion is formed between a plurality of surfaces coupled by welding the first L-shaped frame and the second L-shaped frame. The examiner disagrees with this because Tanabe explicitly teaches that the engagement of the protrusion portion and the groove portion is formed between a plurality of surfaces coupled by welding the first case and the second case (Fig. 5, para. 21). One modifying Sora in view of Tanabe would form the engagement of the protrusion portion and the groove portion between a plurality of surfaces coupled by welding the first L-shaped frame and the second L-shaped frame. 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. The rejections above rely on the references for all the teachings expressed in the text of the references and/or one of ordinary skill in the art would have reasonably understood from the texts. Only specific portions of the texts have been pointed out to emphasize certain aspects of the prior art, however, each reference as a whole should be reviewed in responding to the rejection, since other sections of the same reference and/or various combinations of the cited references may be relied on in future rejections in view of amendments. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN E YOON whose telephone number is (571)270-5932. The examiner can normally be reached Monday-Friday 9 AM- 5 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, Keith Walker can be reached at 571-272-3458. 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. /KEVIN E YOON/Primary Examiner, Art Unit 1735 1/12/2026
Read full office action

Prosecution Timeline

Aug 18, 2022
Application Filed
Jun 29, 2025
Non-Final Rejection — §103
Oct 02, 2025
Response Filed
Jan 15, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12592456
ELECTRIC POWER STORAGE MODULE
2y 5m to grant Granted Mar 31, 2026
Patent 12592439
EXTRUDED THERMOLASTIC BATTERY ENCLOSURE
2y 5m to grant Granted Mar 31, 2026
Patent 12589432
DEVICE AND METHOD FOR PRODUCING AN INVESTMENT CASTING COMPONENT
2y 5m to grant Granted Mar 31, 2026
Patent 12586787
SHELF-LIFE ENHANCED LITHIUM HYDROXIDE VIA THE SURFACE PROTECTION AND THE IMPROVED METAL-DOPED CATHODE MATERIALS USING THE SAME
2y 5m to grant Granted Mar 24, 2026
Patent 12580188
Positive Electrode Material Powder, Positive Electrode and Lithium Secondary Battery Including the Same
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+43.6%)
2y 4m
Median Time to Grant
Moderate
PTA Risk
Based on 663 resolved cases by this examiner. Grant probability derived from career allow rate.

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