Prosecution Insights
Last updated: August 08, 2026
Application No. 18/520,900

BATTERY PACK

Non-Final OA §103
Filed
Nov 28, 2023
Priority
Jan 16, 2023 — RE 10-2023-0006134
Examiner
LEE, SEUNG H
Art Unit
Tech Center
Assignee
Samsung SDI Co., Ltd.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
1058 granted / 1208 resolved
+27.6% vs TC avg
Moderate +11% lift
Without
With
+10.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
23 currently pending
Career history
1224
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
34.6%
-5.4% vs TC avg
§102
34.5%
-5.5% vs TC avg
§112
13.5%
-26.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1208 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) 1-5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kamibayshi (EP 3460947, cited by the applicant) in view of Ashtiani et al. (US 6078165). Re claim 1: Kamibayshi teaches a battery pack (fig. 9) comprising a first battery cell (C[0]), a second battery cell (C[1]) serially connected to the first battery cell, and a master board (800) electrically connected to the first battery cell and the second battery cell, wherein the master board comprises a first power line connected to a positive terminal of the first battery module, a second power line connected to the positive terminal of the second battery module, a multiplexer (MUX) circuit (121) connected to the first power line and the second power line and connected to one of the first battery cell and the second battery cell, having a relatively higher voltage among the first battery cell and the second battery cell (paragraph 0089), a direct current-to-direct current (DC-DC) converter (811) connected to the multiplexer (MUX) circuit and configured to perform DC-DC conversion (fig. 11, paragraphs 0133, 0141), and a control unit (130) configured to receive driving power from the DC-DC converter (paragraph 0133)(see figs. 9-11; paragraphs 0132-0145). However, Kamibayshi fairly suggests that the multiplexer is connected to the battery modules. Ashtiani teaches a multiplexed modular battery management system comprising a plurality of battery modules (14, 16, 18) wherein the plurality of battery modules connected to the multiplexer (MUX)(21) (see figs. 1-3; col. 2, line 34- col. 4, line 24). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention was made to incorporate the teachings of Ashtiani to the teachings of Kamibayshi in order to provide the increased voltage and capacity by grouping battery cells into the battery module, in which it is well known in the art. Re claim 2: Wherein voltages of the first battery cell and the second battery cell are balanced by the multiplexer (MUX) circuit (fig. 6; paragraph 0089-0090). Re claim 3: The battery pack further comprising a voltage sensor (131), wherein the voltage sensor transmits voltage information of each of the first battery cell and the second battery cell to the control unit (paragraph 0029). Re claims 4, 5: Although, Kamibayshi as modified by Ashtiani fails to particularly teach that the particular voltages of the battery modules and converter. However, it would have been an obvious design variation well within the ordinary skill in the art failing to provide any unexpected results for choosing the voltages of the modules and converter, in fact, voltages of the battery modules can be various depends on applications and/or devices to operate, and therefore an obvious expedient. Allowable Subject Matter Claims 6-8 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. The following is a statement of reasons for the indication of allowable subject matter: None of prior art teaches the battery pack comprising a first battery module and a second battery module, wherein if a voltage of the first battery module is higher than a voltage of the second battery module, the control unit is configured to receive power from the first battery module by connecting the DC-DC converter to the first battery module using the multiplexer (MUX) circuit, and if the voltage of the second battery module is higher than the voltage of the first battery module, the control unit is configured to receive power from the second battery module by connecting the DC-DC converter to the second battery module using the multiplexer (MUX) circuit. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Lee et al. (US 2010/0207579), Chen et al. (US 10921378), and Bulur et al. (US 9557387) teach battery packs. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SEUNG H LEE whose telephone number is (571)272-2401. The examiner can normally be reached 7-4:00PM. 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, Steven Paik can be reached at 571-272-2404. 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. /SEUNG H LEE/Primary Examiner, Art Unit 2876
Read full office action

Prosecution Timeline

Nov 28, 2023
Application Filed
Jul 15, 2026
Non-Final Rejection mailed — §103 (current)

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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
88%
Grant Probability
98%
With Interview (+10.8%)
2y 0m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1208 resolved cases by this examiner. Grant probability derived from career allowance rate.

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