Prosecution Insights
Last updated: October 25, 2026
Application No. 18/354,258

STACKED POWER SUPPLY MODULES

Final Rejection §103§112
Filed
Jul 18, 2023
Priority
Mar 28, 2023 — CN 202320644845.9
Examiner
HANYON, SAMANTHA LEE
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Sungrow Power Supply Co., Ltd.
OA Round
2 (Final)
100%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 100% — above average
100%
Career Allowance Rate
1 granted / 1 resolved
+35.0% vs TC avg
Minimal +0% lift
Without
With
+0.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
21 currently pending
Career history
28
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
54.0%
+14.0% vs TC avg
§102
14.3%
-25.7% vs TC avg
§112
28.6%
-11.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1 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 . Response to Amendment This Office action addresses claims 1-20. Claims 1-20 were amended but remain rejected under U.S.C. 35 103. Accordingly, this action is made final. Claim Rejections - 35 USC § 112 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 1,2,3,4,5-8, 10,13-15,16,20 have been amended. The rejections are withdrawn accordingly. Claim 4 is 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 4 recites the limitation “the handle provided on the power supply module” in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 1 has a handle as part of the first structural member but is a protruded handle and is not described as “on the power supply module”. It is unclear if this is the same handle in 4, as in 1 or a different handle. 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-12, 18-20 is rejected under 35 U.S.C. 103 as being unpatentable over Su et al. (CN209447901U; hereinafter Su in view of Zeiler et al. (US20210354541 A1; Zeiler hereinafter). Regarding claim 1, Su teaches a power supply module assembly (a stacked battery pack (abstract)) comprising at least two power supply modules (group of battery modules, abstract) at least one first structural member (fixing member, abstract), and at least one second structural member (see convex portion 5 and opening groove 6 matching the convex portion in figure 1), wherein the power modules are stacked (see figure 1 below) any two adjacent power supply modules of the at least two power supply modules are limited and/or fixed with each other in at least one direction through a corresponding first structural member of the at least one first structural member (see the connecting member 41 with fasteners 42 in figure 1); the at least two power supply modules are limited and/or fixed with each other in at least one other direction through the at least one second structural members (see convex portion 5 and opening groove 6 matching the convex portion in figure 1); and the at least two power supply modules are limited and/or fixed in three directions through the at least one first structural members together with the at least one second structural members (The convex portion with matched groove limits the movement in the horizontal plane and the fixing rod additionally limits any displacement in the vertical direction). Su discloses a convex portion and a matching opening groove but fails to disclose that the at least one first structural member comprises a slot and a protruded handle. Zeiler discloses a scalable power unit that includes handles which allows the removal of individual battery packs. Su and Zeiler are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely battery packs and their fixing structures. In seeking a battery pack with a simple and easy to install fixing structure that is low cost and includes a handle before the effective filing date of the current invention, it would have been obvious to one having ordinary skill in the art to apply the handle fixing structure discloses by Zeiler to the power supply module assembly disclosed by Su as doing so would amount to nothing more than to use a known method for its intended use in a known environment to accomplish an entirely predictable result. Regarding claim 2, Su teaches stacked power supply module assembly according to claim 1 and discloses a shaft-hole matched fitting structure by disclosing that the transverse cross-sectional shape of the connecting rod is matched with the shape of the base 1 (Fig. 2). PNG media_image1.png 888 728 media_image1.png Greyscale Figure 1: Su figure 2 PNG media_image2.png 780 640 media_image2.png Greyscale Figure 2: Zeiler figure 10 Regarding claim 3, modified Su teaches the power supply module assembly according to claim 1, wherein a part, provided on the power supply module, of each of the at least one first structural members a part of the power supply module or a separate structure connected the power supply module (Zeiler figure 10 displays the handle being a part of the power supply module.). Regarding claim 4, modified Su teaches the stacked power supply module assembly according to claim 1 but fails to disclose that wherein a part of each of the at least one first structural member comprises the handle provided on the power supply module (Zeiler: figure 10, see figure 2). Regarding claim 5, Su discloses the stacked power supply module assembly modules according to claim 1, wherein the at least two power supply modules share all of the at least one second structural (see Su element 41). Regarding claim 6, Su discloses the stacked power supply module assembly modules according to claim 2, wherein the at least two power supply modules share all of the at least one second structural (see Su element 41). Regarding claim 7, Su discloses the stacked power supply module assembly modules according to claim 3, wherein the at least two power supply modules share all of the at least one second structural (see Su element 41). Regarding claim 8, Su discloses the stacked power supply module assembly modules according to claim 4, wherein the at least two power supply modules share all of the at least one second structural (see Su element 41). Regarding claim 9, Su discloses the power supply module assembly according to claim 5, wherein in a case that the at least two power supply modules share the at least one second structural members, wherein the at least one second structural members is provided at one end or both ends of the power supply modules in a stacking direction, and/or, the at least one second structural members is provided on an outermost or second outermost power supply module of the at least two power supply modules in a stacking direction(see base 1 and connecting rod fixed in the respective opening on the base (Su: fig. 2)). Regarding claim 10, Su discloses the stacked power supply module according to claim 1 and teaches at least one second structural member that is in a discrete structure interconnected with the corresponding power supply (fixing rod 41 and fixing elements 42) to form one joined battery assembly. Su figure 3 shows one power supply module assembly (see Su figure 3). Su further discloses that the base, the battery module group and the main control module can be connected into a whole through the fixing device, so that the battery pack is integrally fixed (abstract). PNG media_image3.png 570 422 media_image3.png Greyscale Figure 4: Su figure 3 Regarding claim 11, Su discloses the stacked power supply module according to claim 2 and teaches at least one second structural member that is in a discrete structure interconnected with the corresponding power supply (fixing rod 41 and fixing elements 42) to form one joined battery assembly. Su figure 3 shows one power supply module assembly (see Su figure 3). Su further discloses that the base, the battery module group and the main control module can be connected into a whole through the fixing device, so that the battery pack is integrally fixed (abstract). Regarding claim 12, Su discloses the stacked power supply module according to claim 3 and teaches at least one second structural member that is in a discrete structure interconnected with the corresponding power supply (fixing rod 41 and fixing elements 42) to form one joined battery assembly. Su figure 3 shows one power supply module assembly (see Su figure 3). Su further discloses that the base, the battery module group and the main control module can be connected into a whole through the fixing device, so that the battery pack is integrally fixed (abstract). Regarding claim 18, Su teaches stacked power supply modules according to claim 3 but fails to disclose connections for energy flow and signal flow and further fails to disclose that the electrical connection is realized by means of hot -plugging or cold-plugging and that the electrical connection is a sequential or spanning connection. Zhang however, in the same field of endeavor namely batteries, discloses hot-plugging males (171) and females (173) as required by the claim (Zhang fig. 3-5) and the hot-plug male and female parts are being connected in stacking direction [0067]. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely power supply assemblies and their fixing structures. In seeking an electrically connected battery before the effective filing date of the claimed invention would have been obvious to one of ordinary skill in the art to apply the connections for energy flow per the teachings of Zhang, to battery modules as disclosed by Su and the motivation to do so would have been to improve a similar device with a known technique. Regarding claim 19, Su teaches stacked power supply modules according to claim 4 but fails to disclose connections for energy flow and signal flow and further fails to disclose that the electrical connection is realized by means of hot -plugging or cold-plugging and that the electrical connection is a sequential or spanning connection. Zhang however, in the same field of endeavor namely batteries, discloses hot-plugging males (171) and females (173) as required by the claim (Zhang fig. 3-5) and the hot-plug male and female parts are being connected in stacking direction [0067]. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely power supply assemblies and their fixing structures. In seeking an electrically connected battery before the effective filing date of the claimed invention would have been obvious to one of ordinary skill in the art to apply the connections for energy flow per the teachings of Zhang, to battery modules as disclosed by Su and the motivation to do so would have been to improve a similar device with a known technique. Regarding claim 20, Su teaches vertically stacked power supply modules (Figures 1 and 2). Claims 13, 14, 15, 16, 17 are rejected under 35 U.S.C. 103 as being unpatentable over Su et al. (CN209447901U; hereinafter Su in view of Zeiler et al. (US 20210354541 A1; Zeiler hereinafter) as applied to claim 1/2/3 and further in view of Zhang et al. (US 20210218103 A1; hereinafter Zhang). Regarding claims 13, modified Su discloses the stacked power supply module according to claim 1 and discloses that one end of each of the at least one second structural member is connected to a corresponding power supply module (see figure 1, connection rod connected to each battery module) of the at least two power supply modules, and the other end of each of the second structural members is mechanically connected to a support structure (see base plate 1, figure 1); and wherein the support structure is an external structural member (see base plate 1, figure 1). Modified Su fails to disclose that each of the second structural members are connected to an external structural member or an end wall. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely batteries and their fastening members. In seeking fastening members that are easy to remove and install and able to connect a battery assembly to a wall before the effective filing date of the current invention, it would have been obvious to one having ordinary skill in the art to apply the fastening member disclosed by Zhang to the power supply module assembly disclosed by modified Su as doing so would amount to nothing more than to use a known material for its intended use in a known environment to accomplish an entirely predictable result. Regarding claim 14, modified Su discloses the stacked power supply module according to claim 2 and discloses that one end of each of the at least one second structural member is connected to a corresponding power supply module (see figure 1, connection rod connected to each battery modules) of the at least two power supply modules, and the other end of each of the second structural members is mechanically connected to a support structure (see base plate 1, figure 1); and wherein the support structure is an external structural member (see base plate 1, figure 1). Modified Su fails to disclose that each of the second structural members are connected to an external structural member or an end wall. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely batteries and their fastening members. In seeking fastening members that are easy to remove and install and able to connect a battery assembly to a wall before the effective filing date of the current invention, it would have been obvious to one having ordinary skill in the art to apply the fastening member disclosed by Zhang to the power supply module assembly disclosed by modified Su as doing so would amount to nothing more than to use a known material for its intended use in a known environment to accomplish an entirely predictable result. Regarding claim 15, modified Su teaches the power supply module assembly according to claim 3 and discloses that one end of each of the at least one second structural member is connected to a corresponding power supply module (see figure 1, connection rod connected to each battery modules) of the at least two power supply modules, and the other end of each of the second structural members is mechanically connected to a support structure (see base plate 1, figure 1); and wherein the support structure is an external structural member (see base plate 1, figure 1). Modified Su fails to disclose that each of the second structural members are connected to an external structural member or an end wall. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely batteries and their fastening members. In seeking fastening members that are easy to remove and install and able to connect a battery assembly to a wall before the effective filing date of the current invention, it would have been obvious to one having ordinary skill in the art to apply the fastening member disclosed by Zhang to the power supply module assembly disclosed by modified Su as doing so would amount to nothing more than to use a known material for its intended use in a known environment to accomplish an entirely predictable result. Regarding claim 16, Su teaches the power supply module assembly according to claim 1 but fails to disclose connections for energy flow and signal flow and that the electrical connection is realized by means of hot -plugging or cold-plugging and that the electrical connection is a sequential or spanning connection. Zhang however, in the same field of endeavor namely batteries, discloses hot-plugging males (171) and females (173) as required by the claim (Fig. 3-5) and the hot-plug male and female parts are being connected in stacking direction [0067]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to apply the connections for energy flow per the teachings of Zhang, to battery modules as disclosed by Su and the motivation to do so would have been to improve a similar device with a known technique. Regarding claim 17, Su teaches stacked power supply modules according to claim 2 but fails to disclose connections for energy flow and signal flow and further fails to disclose that the electrical connection is realized by means of hot -plugging or cold-plugging and that the electrical connection is a sequential or spanning connection. Zhang however, in the same field of endeavor namely batteries, discloses hot-plugging males (171) and females (173) as required by the claim (Zhang fig. 3-5) and the hot-plug male and female parts are being connected in stacking direction [0067]. Su and Zhang are analogous prior art to the current invention because they are concerned with the same field of endeavor, namely power supply assemblies and their fixing structures. In seeking an electrically connected battery before the effective filing date of the claimed invention would have been obvious to one of ordinary skill in the art to apply the connections for energy flow per the teachings of Zhang, to battery modules as disclosed by Su and the motivation to do so would have been to improve a similar device with a known technique. Response to Arguments Applicant's arguments filed 07/10/ have been fully considered but they are not persuasive. Claim 1 has been amended to include “the at least one first structural member comprises a slot and a protruded handle”. Accordingly, the claims are newly rejected. Conclusion The prior art made of record and not relied upon is considered pertinent to the applicant’s disclosure: CN216750120U: Discloses a stacked battery pack and battery cabinet including a handle. CN115036640A: Discloses a fixing mechanism including a lock rod and hole 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMANTHA LEE HANYON whose telephone number is (571)272-8881. The examiner can normally be reached Mon-Fri. 7:30am-5pm. 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, Nicole Buie-Hatcher can be reached at (571) 270-3879. 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. /S.L.H./Examiner, Art Unit 1725 /NICOLE M. BUIE-HATCHER/Supervisory Patent Examiner, Art Unit 1725
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Prosecution Timeline

Jul 18, 2023
Application Filed
Apr 10, 2026
Non-Final Rejection mailed — §103, §112
Jul 10, 2026
Response Filed
Sep 29, 2026
Final Rejection mailed — §103, §112 (current)

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Prosecution Projections

3-4
Expected OA Rounds
100%
Grant Probability
99%
With Interview (+0.0%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1 resolved cases by this examiner. Grant probability derived from career allowance rate.

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