Prosecution Insights
Last updated: July 17, 2026
Application No. 18/341,264

ENERGY STORAGE DEVICE AND BATTERY CABINET

Non-Final OA §102§103§112
Filed
Jun 26, 2023
Priority
Aug 15, 2022 — CN 202222148376.X
Examiner
ZEMUI, NATHANAEL T
Art Unit
1727
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sungrow Power Supply Co., Ltd.
OA Round
1 (Non-Final)
56%
Grant Probability
Moderate
1-2
OA Rounds
7m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allowance Rate
264 granted / 472 resolved
-9.1% vs TC avg
Strong +24% interview lift
Without
With
+24.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
48 currently pending
Career history
530
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
89.6%
+49.6% vs TC avg
§102
6.0%
-34.0% vs TC avg
§112
2.2%
-37.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 472 resolved cases

Office Action

§102 §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 . Status of Claims Claims 1-20 are currently pending. 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 1-20 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. The term “a high-voltage switch box” in claims 1-2, 6-8, 11-12 & 16-18 is a relative term which renders the claim indefinite. The term “a high-voltage switch box” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Since the instant specification does not provide any guidance or scope for the voltage intended by “high voltage”, the above cited limitation is broadly read as “a switch box”. Claims 7 & 17 each recite “the contactor” but does not provide adequate antecedent basis. For purposes of examination, “the contactor” is read as “the at least one contactor” as this appears to be applicant’s intent. Claims 8 & 18 each recite “the shunt” but does not provide adequate antecedent basis. For purposes of examination, “the shunt” is read as “the at least one shunt” as this appears to be applicant’s intent Claim Rejections - 35 USC § 102 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 the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-6, 9-16 & 19-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Xu (CN 113036317 A, and hereinafter using, for citation purposes, corresponding US 2024/0079750 A1). Regarding claims 1 & 11, Xu teaches a battery rack (i.e battery cabinet) ([0053] & [0061]) comprising an energy storage device ([0075]) comprising: a plurality of battery clusters (fig. 9; [0075]); a high-voltage switch box (F2+K1), a positive input terminal of the high-voltage switch box is connected to positive electrodes of the plurality of battery clusters, a negative input terminal of the high-voltage switch box is connected to negative electrodes of the plurality of battery clusters, and an output terminal of the high-voltage switch box is configured to connect to an electrical device, wherein the high-voltage switch box is configured to control the plurality of battery clusters to be electrically connected and disconnected from an electrical device (fig. 9; [0044]-[0053] & [0075]). Regarding claims 2 & 12, Xu teaches the high-voltage switch box comprising a short circuit/overload protection circuit; wherein short circuit/overload protection circuit is arranged in series between the plurality of battery clusters and the electrical device, and the short circuit/overload protection circuit is configured to control the plurality of battery clusters to be electrically disconnected from the electrical device in response to any one of battery clusters being in an overload state or in a short circuit state ([0064]). Regarding claims 3-4 & 13-14, Xu teaches high-voltage switch box comprising: a first fuse (F2) arranged in series between the positive electrodes of the plurality of battery clusters and a positive terminal of the electrical device; a first terminal of the first fuse is connected to the positive electrodes of the plurality of battery clusters, and a second terminal of the first fuse is connected to the positive terminal of the electrical device (fig. 9); and a second fuse (F2) arranged in series between the negative electrodes of the plurality of battery clusters and a negative terminal of the electrical device; a first terminal of the second fuse is connected to negative electrodes of the plurality of battery clusters, and a second terminal of the second fuse is connected to the negative terminal of the electrical device (fig. 9). Regarding claims 5 & 15, Xu teaches the first fuse being GPV class fuse (i.e an overload protection fuse) and the second fuse being an AR class fuse (i.e a short-circuit protection fuse) ([0064]). Regarding claims 6 & 16, Xu teaches the high voltage switch box further comprising a load switch (K1), a positive input terminal of the load switch is connected to the positive electrodes, and a negative input terminal of the load switch is connected to the negative electrodes, and an output terminal of the load switch is configured to connect the electrical device; and the load switch is configured to control the plurality of battery clusters to be electrically connected to/disconnected from the electrical device (fig. 9; [0044]-[0045]). Regarding claims 9 & 19, Xu teaches the battery clusters comprising a plurality of battery packs, and the plurality of battery pack are arranged in series (figs. 2 & 9; [0075]). Regarding claims 10 & 20, Xu teaches at least one third fuse (F1) arranged in series between any two battery packs that are adjacently arranged in the battery cluster (figs. 2 & 9). 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. Claims 7-8 & 17-18 are rejected under 35 U.S.C. 103 as being unpatentable over Xu (CN 113036317 A, and hereinafter using, for citation purposes, corresponding US 2024/0079750 A1) in view of Zhou (CN 112467839 A, and hereinafter using, for citation purposes, corresponding US 2022/0166072 A1). Regarding claims 7-8 & 17-18, Xu teaches the energy storage device of claim 1 and battery cabinet of claim 11, respectively, but is silent as to the high-voltage switch box further comprising contactors (claims 7 & 17) and shunts (claims 8 & 18), wherein each battery cluster is provided with at least one contactor (claims 7 & 17) and at least one shunt (claims 8 & 18), a first terminal of the at least one contactor (claims 7 & 17) and a first terminal of the at least one shunt (claims 8 & 18) being connected to the battery cluster, and a second terminal of the at least one contactor (claims 7 & 17) and a second terminal of the at least one shunt (claims 8 & 18) being configured to connect to the electrical device; and the at least one contactor being configured to control the battery cluster to be electrically connected to/disconnected from the electrical device (claims 7 & 17) and the at least one shunt being configured to detect an output current of the battery cluster (claims 8 & 18). Zhou teaches an energy storage device comprising a plurality of battery clusters (fig. 7) and a switch box (i.e battery cluster management device) comprising contactors (K11 & K12) and shunts (current collecting circuit), wherein each battery cluster is provided with at least one contactor (K11 & K12) and at least one shunt (current collecting circuit), a first terminal of the at least one contactor and a first terminal of the at least one shunt being connected to the battery cluster, and a second terminal of the at least one contactor and a second terminal of the least one shunt being configured to connect to the electrical device; and the at least one contactor being configured to control the battery cluster to be electrically connected to/disconnected from the electrical device and the at least one shunt being configured to detect an output current of the battery cluster (figs. 2-7; [0046]-[0052]). It would have been obvious to one of ordinary skill in the art, before the effective filing date of the present invention, to use contactors, as described above, in order to control the electrical connection between the battery clusters and the electrical device based on a state of charge of the battery cluster and a charging/discharging condition as taught by Zhou ([0051]-[0052]) and to use shunts, as described above, in order to collect a direct current between the battery cluster and DC/AC circuit as taught by Zhou ([0048]). Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHANAEL T ZEMUI whose telephone number is (571)272-4894. The examiner can normally be reached M-F 8am-5pm (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, BARBARA GILLIAM can be reached at (571)272-1330. 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. /NATHANAEL T ZEMUI/Examiner, Art Unit 1727
Read full office action

Prosecution Timeline

Jun 26, 2023
Application Filed
Jun 05, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
56%
Grant Probability
80%
With Interview (+24.0%)
3y 7m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 472 resolved cases by this examiner. Grant probability derived from career allowance rate.

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