Prosecution Insights
Last updated: July 17, 2026
Application No. 18/330,763

BATTERY PACK

Final Rejection §103
Filed
Jun 07, 2023
Priority
Aug 24, 2022 — RE 10-2022-0105834
Examiner
SRIPATHI, ANKITH REDDY
Art Unit
1728
Tech Center
1700 — Chemical & Materials Engineering
Assignee
SK Inc.
OA Round
2 (Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
82 granted / 120 resolved
+3.3% vs TC avg
Strong +21% interview lift
Without
With
+21.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
34 currently pending
Career history
184
Total Applications
across all art units

Statute-Specific Performance

§103
92.0%
+52.0% vs TC avg
§102
3.1%
-36.9% vs TC avg
§112
0.7%
-39.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 120 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. 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) 1-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Miler (US20190157636). Regarding Claim 1, Miler discloses a battery pack (battery pack with plurality of cell blocks, [004]) comprising: A pack housing forming a plurality of areas (cell blocks fill plurality of areas, [004]); A plurality of battery modules disposed in the plurality of areas (cell blocks form battery modules, [004]); and A cover which is disposed abode the plurality of battery modules and on which a plurality of exhaust devices corresponding to each of the plurality of battery modules are formed (shroud-625 acts as cover, with vents-627, Fig. 6); Miler does not directly disclose wherein the plurality of exhaust devices is be opened or closed by the pressure of a gas generated at a corresponded battery module among the plurality of battery modules. However, Miler discloses where the vents can be formed of various structures previously described ([0139]). Miler further discloses a vent design that utilizes a trap door structure that opens and closes based on a pressure from the exhaust gas ([0053], [0053]). Therefore, it would be obvious to one of ordinary skill in the art using the disclosure of Miler to have wherein the plurality of exhaust devices is be opened or closed by the pressure of a gas generated at a corresponded battery module among the plurality of battery modules. Regarding Claim 2 and Claim 3, Miler discloses the limitations as set forth above. Miler does not directly disclose wherein the plurality of exhaust devices is opened when the pressure of a gas generated at a corresponding battery module is equal to or higher than a reference value, or wherein each of the plurality of exhaust devices is closed when the pressure of a gas generated at a corresponding battery module is lower than a reference value. However, Miler discloses where the vents can be formed of various structures previously described ([0139]). Miler further discloses a vent design that utilizes a trap door structure that opens and closes based on a pressure from the exhaust gas ([0053], [0053]). Miler further discloses wherein the trap door design is configured to have an open position and a closed position ([0053]). Miler further discloses wherein the trap door is opened when a pressure builds up in the within the cell block ([0053]). Therefore it would be obvious to one of ordinary skill in the art using the disclosure of Miler to have wherein the plurality of exhaust devices is opened when the pressure of a gas generated at a corresponding battery module is equal to or higher than a reference value, or wherein each of the plurality of exhaust devices is closed when the pressure of a gas generated at a corresponding battery module is lower than a reference value. Regarding Claim 4, Miler discloses the limitations as set forth above. Miler further discloses wherein the exhaust devices comprises a hinge coupled to a door (uncut portion is bendable joint-186 acts as hinge, [0053]). Regarding Claim 5, Miler discloses the limitations as set forth above. Miler further discloses wherein the cover comprises a plurality of module covers each corresponding to the plurality of areas, and one or more exhaust devices among the plurality of exhaust devices if formed on each of the plurality of module covers (shrouds-625 with vents-627 can be present on each battery module, [0144]). Regarding Claim 6, Miler discloses the limitations as set forth above. Miler further discloses a heat insulating member disposed between each of the plurality of battery modules and each of the plurality of module covers (occluding member comprises thermal insulation, [0100]). Regarding Claim 7 & 8, Miler discloses the limitations as set forth above. Miler discloses a wherein the pack housing comprises a lower plate in which an inner wall and an outer wall section a plurality of areas is coupled (plate structure-114 acts as lower plate, with front panel and rear panel act as outer wall sections, lateral wall members act as inner wall sections, [0040]), and an upper plate forming an upper space of a cover (lid-840 acts as upper plate). Miler does not directly disclose wherein the outer wall comprises a vent hole that allows communication between the upper space with an external space of the pack housing, and wherein a gas generated at one battery module among a plurality of battery modules is discharged to an external space through the upper space and the vent hole when an exhaust device located above the battery module among the plurality of exhaust devices is opened. Miler further discloses wherein pack vents can be incorporated with the front panel and/or rear panel of the battery pack structure ([0041]). Miler further discloses wherein the battery pack exhausts the discharged matter out of the pack vent ([0073]). Miler further discloses wherein the pack vent is displaced at the end of the battery pack housing where the front or rear panel would be (pack vent-212, Fig. 2A, [0080]), where the discharged matter including the exhaust gases is pushed through the chambers to the pack vent ([0080]). It is the examiner’s position that the pack vent structure disclosed by Miler would have a vent hole in the outer wall that allows communication between the upper space with an external space of the pack housing, where the exhaust from the battery modules is pushed through the plenum chambers to the pack vent ([0080]). Therefore it would be obvious to one of ordinary skill in the art using the disclosure of Miler to have wherein the outer wall comprises a vent hole that allows communication between the upper space with an external space of the pack housing, and wherein a gas generated at one battery module among a plurality of battery modules is discharged to an external space through the upper space and the vent hole when an exhaust device located above the battery module among the plurality of exhaust devices is opened. Regarding Claim 9, Miler discloses the limitations as set forth above. Miler does not directly disclose wherein the height of than outer wall is greater than the height of the inner wall. The examiner notes that under broadest reasonable interpretation of the claim language, “Height of the outer wall is greater than the height of the inner wall” can be interpreted to mean any structure where the outer wall has a greater height. Miler discloses wherein the rear and front panels and lateral members provide structural rigidity to the battery ([0041]) and allow gas exhaust removal for the battery pack ([0080]), which are the same functions as the instant application. In Gardnerv.TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984), the Federal Circuit held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. Therefore, absent a showing of criticality, it would be obvious to one of ordinary skill in the art using the disclosure of Miler to have wherein the height of than outer wall is greater than the height of the inner wall. Regarding Claim 10, Miler discloses the limitations as set forth above. Miler further discloses wherein a portion of the cover is disposed between the top of the outer wall and the bottom of the upper plate (shroud-625 acting as cover is placed between the top of the outer wall and the bottom of the upper plate, Fig. 6). Regarding Claim 11, Miler discloses the limitations as set forth above. Miler further discloses wherein each of the plurality of battery modules comprises a plurality of battery cells stacked in one direction (each cell block acting as battery module, houses plurality of battery cells, [004], [0096], Fig. 6). Regarding Claim 12, Miler discloses a battery pack (battery pack with plurality of cell blocks, [004]) comprising: A lower plate in which and an inner wall and an outer wall section a plurality of areas are coupled (plate structure-114 acts as lower plate, with front panel and rear panel act as outer wall sections, lateral wall members act as inner wall sections, [0040]); A pack housing forming a plurality of areas (cell blocks fill plurality of areas, [004]); A plurality of battery modules disposed in the plurality of areas (cell blocks form battery modules, [004]); and An upper plate forming an upper space of the cover (lid-840 acts as upper plate). A cover which is disposed abode the plurality of battery modules and on which a plurality of exhaust devices corresponding to each of the plurality of battery modules are formed (shroud-625 acts as cover, with vents-627, Fig. 6); Miler does not directly disclose wherein the plurality of exhaust devices is be opened or closed by the pressure of a gas generated at a corresponded battery module among the plurality of battery modules. However, Miler discloses where the vents can be formed of various structures previously described ([0139]). Miler further discloses a vent design that utilizes a trap door structure that opens and closes based on a pressure from the exhaust gas ([0053], [0053]). Therefore, it would be obvious to one of ordinary skill in the art using the disclosure of Miler to have wherein the plurality of exhaust devices is be opened or closed by the pressure of a gas generated at a corresponded battery module among the plurality of battery modules. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANKITH R SRIPATHI whose telephone number is (571)272-2370. The examiner can normally be reached Monday - Friday: 7:30 am - 5:00pm. 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, Matthew Martin can be reached at 571-270-7871. 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. /ANKITH R SRIPATHI/Examiner, Art Unit 1728 /MATTHEW T MARTIN/Supervisory Patent Examiner, Art Unit 1728
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Prosecution Timeline

Jun 07, 2023
Application Filed
Dec 31, 2025
Non-Final Rejection mailed — §103
Feb 25, 2026
Examiner Interview (Telephonic)
Feb 25, 2026
Examiner Interview Summary
Mar 27, 2026
Response Filed
Jul 13, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12676303
NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
3y 2m to grant Granted Jul 07, 2026
Patent 12671094
CARBON FIBER AND GRAPHENE COMPOUNDED HIGH-STRENGTH POROUS MATERIAL, AND GAS DIFFUSION LAYER AND PREPARATION METHOD THEREFOR
2y 9m to grant Granted Jun 30, 2026
Patent 12614790
Battery Cell and Battery Module Comprising Same
2y 5m to grant Granted Apr 28, 2026
Patent 12555780
NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME
1y 10m to grant Granted Feb 17, 2026
Patent 12523705
Battery Apparatus and Current Sensor Diagnosis Method
4y 4m to grant Granted Jan 13, 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
68%
Grant Probability
89%
With Interview (+21.1%)
3y 4m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 120 resolved cases by this examiner. Grant probability derived from career allowance rate.

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