Prosecution Insights
Last updated: October 16, 2026
Application No. 18/630,048

SECONDARY BATTERY

Final Rejection §103§112
Filed
Apr 09, 2024
Priority
May 24, 2023 — JP 2023-085301
Examiner
CLEVELAND, TIMOTHY C
Art Unit
1774
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Toyota Motor Corporation
OA Round
2 (Final)
60%
Grant Probability
Moderate
3-4
OA Rounds
6m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allowance Rate
564 granted / 943 resolved
-5.2% vs TC avg
Strong +18% interview lift
Without
With
+18.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
44 currently pending
Career history
990
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
44.6%
+4.6% vs TC avg
§102
18.8%
-21.2% vs TC avg
§112
31.8%
-8.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 943 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 . 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 2-4 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. In regard to claim 2, it is unclear if the limitation of “a plurality of injection ports” is further modifying or in addition to the limitation of “an injection port” as recited in claim 1. For the purpose of examination, the limitation of claim 2 will be viewed has further modifying the limitation of claim 1. Claims 3-4 are rejected based upon their dependence on claim 2. Claim Rejections - 35 USC § 103 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 1-3 are rejected under 35 U.S.C. 103 as being unpatentable over Kim (US 2013/0273411) in view of Choi et al. (US 2022/0302533; hereinafter “Choi”) and Okamoto et al. (JP 2002008634; IDS 2/3/26; hereinafter “Okamoto”). In regard to claim 1, Kim discloses a secondary battery (“rechargeable battery”) comprising an electrode assembly (10) including a positive electrode (second electrode 12) and a negative electrode (first electrode 11) disposed in a jelly roll state; a housing (combination of case 20 and cap plate 30) that houses the electrode assembly; and a positive electrode terminal (42) and a negative electrode terminal (41) provided to the housing, wherein the housing includes a main body (case 20) with a first opening (support recess 23) and a second opening (support recess 24) respectively provided on opposite sides in a long-side direction (i.e. the width) of the housing, the long-side direction being orthogonal to a first direction (i.e. the thickness), a first sealing body (penetrating gasket 43) that closes the first opening, and a second sealing body (penetrating gasket 44) that closes the second opening, the negative electrode terminal is provided to the first sealing body, the positive electrode terminal is provided to the second sealing body, the housing includes a pair of long-side surfaces (i.e. the main face of the case 20) facing each other in the first direction, and a pair of short-side surfaces (i.e. the top comprised of the cap plate 30 and bottom of the case 20) facing each other in a short-side direction (i.e. the height) of the housing, the short-side direction being orthogonal to the first direction and the long-side direction, the electrode assembly includes a negative electrode current collecting portion (lead tab 51) located on a first end side in the long-side direction and electrically connected to the negative electrode terminal, and a positive electrode current collecting portion (lead tab 52) located on a second end side in the long-side direction and electrically connected to the positive electrode terminal, and one short-side surface of the pair of short-side surfaces is provided with an injection port (electrolyte injection opening 34). See Figures 1-4 and paragraphs [0036]-[0057]. Kim is silent in regard to an electrode assembly including a positive electrode and a negative electrode disposed side by side in a first direction, wherein the main body includes a pair of short-side surfaces, and wherein one of the short-side surfaces of the main housing is provided with an injection port. Choi discloses a secondary battery wherein the electrode assembly 10 includes a positive electrode (cathode plate 13a) and a negative electrode (anode plate 11a) disposed side by side (the assembly is formed by “stacking” the plates; [0041]) in a first direction (i.e. the thickness direction of the case 30). The orientation of the electrodes is best depicted in Figures 3 and 4a which shows that the plates are oriented relative to the housing in the same manner as recited in the instant claims. Choi also discloses wherein the main body (case 30) of the housing includes two openings which are closed by a pair of cap assemblies (50,60), a pair of long-side surfaces (i.e. the main faces of the case 30) facing each other in the first direction and a pair of short-side surfaces (i.e. the top and bottom of the case 30) facing each other in a short-side direction (i.e. the height) of the housing. See [0040] and Figures 1-2. Choi further discloses wherein a first injection port (512) and a second injection port (612) are disposed such that they overlap with the negative electrode current collecting portion and the positive electrode current collecting portion, respectively, as the ports are provided in respective end sides. See Figure 2. Choi is silent to wherein the injection ports are located on one of the short sides. Okamoto discloses a battery housing (can 2) which includes two injection ports (solution intake ports 5) on one of the short-side surfaces (i.e. the top surface). See abstract and Figures 2, 4 and 5. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have substituted the electrode plate stacking design of Choi for the wound electrode of Kim without creating any new or unexpected results as a stacked electrode is functionally equivalent to a jelly roll orientation. Further, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have substituted the main housing having two openings as taught by Choi for the main housing of Kim having an open top and to have arranged the injection ports in the top surface of the main housing as disclosed by Okamoto without creating any new or unexpected results as the mere rearrangement of parts is within the ambit of a person of ordinary skill in the art. See In re Japikse, 86 USPQ 70 (CCPA 1950) (see MPEP § 2144.04). Therefore, it would have also been obvious to one of ordinary skill in the art before the respective filing date of the claimed invention to have combined the teaching of Choi of having the injection ports adjacent to the electrode current collection portions with the above combined apparatus to result in injection ports on the one short-side surface being arranged such that they overlap with a respective electrode current collection portion absent of any new or unexpected results. In regard to claim 2, Kim is silent in regard to wherein the one short-side surface is provided with a plurality of the injection ports. Choi discloses wherein each cap assembly (50,60) includes an injection opening (injection ports 512 and 612). See Figure 2, [0050] and [0063]. Okamoto discloses wherein the top surface of the battery can 2 includes two solution intake ports 5 in order to increase the electrolyte filling speed. See [0016]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined the two top-surface injection ports of Okamoto with the above combined apparatus of claim 1 for the purpose of increasing the electrolyte filling speed of the battery. In regard to claim 3, Kim and Okamoto are silent in regard to wherein the injection ports respectively overlap with the negative and positive electrode current collecting portion. Choi discloses wherein a first injection port (512) and a second injection port (612) are disposed such that they overlap with the negative electrode current collecting portion and the positive electrode current collecting portion, respectively, as the ports are provided in respective end sides. See Figure 2. Therefore, it would have been obvious to one of ordinary skill in the art before the respective filing date of the claimed invention to have combined the teaching of Choi of having the injection ports adjacent to the electrode current collection portions with the above combined apparatus of claim 2 to result in injection ports in the one short-side surface and overlapping with respective electrode current collection portions absent of any new or unexpected results. The mere rearrangement of parts, without any new or unexpected results, is within the ambit of a person of ordinary skill in the art. See In re Japikse, 86 USPQ 70 (CCPA 1950) (see MPEP § 2144.04). Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over Kim in view of Choi and Okamoto as applied to claim 3 above and further in view of Kawate et al. (US 10,833,298; hereinafter “Kawate”). In regard to claim 4, Kim, Choi and Okamoto are silent in regard to a spacer member as claimed. Kawate discloses a battery (energy storage device 10) which includes an upper spacer 500 between the electrode assembly (electrode body 400) and the one short-side surface (top surface of the case 100). Kawate teaches that the upper spacer 500 necessarily includes structure equivalent to the recited storage portion which would be capable of storing electrolyte solution as the upper spacer 500 includes cut-out portions (inserting portions 520) which are notches in the space and would necessarily create hollow space within the case 100 which would be capable of storing additional electrolyte. See col. 4, line 20 through col. 5, line 12 and Figures 2 and 11. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined the upper spacer of Kawate with the above combined apparatus of claim 3 for the purpose of preventing short circuit between the electrode and the battery case. Claims 5-7 are rejected under 35 U.S.C. 103 as being unpatentable over Kim in view of Choi and Okamoto as applied to claim 1 above and further in view of Chen (CN 103474599 with reliance upon the English-language machine translation). In regard to claims 5-7, Kim discloses a vent hole 35 having a vent plate 37 for serving as a discharge passage for expelling gas to the outside of the rechargeable battery due to decomposition or degradation of the electrolyte. Kim teaches that the vent hole is provided in the central portion of the one short-side surface (the top surface) in the long-side direction (i.e. width). See [0047] and Figure 2. Kim is silent in regard to the vent hole including a pressure release valve. Chen discloses wherein the top surface of a battery includes a pressure release valve. See abstract and Figures 1-2. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have combined the pressure release valve of Chen with the vent hole of Kim in the above combined apparatus of claim 1 for the purpose of preventing solid materials from escaping from the battery upon the valve being opened. Claim 8 is rejected under 35 U.S.C. 103 as being unpatentable over Kim in view of Choi and Okamoto as applied to claim 1 above and further in view of Zhou et al. (ES 2922198 with reliance upon the English-language machine translation; hereinafter “Zhou”). In regard to claim 8, Kim, Choi and Okamoto are silent in regard to the injection port being provided with ventilation film. Zhou discloses a ventilation film (first ventilation film 33) which covers the liquid injection hole 31. The first ventilation film 33 necessarily allows gas to pass therethrough without allow a liquid to pass therethrough. See Figure 1 and the last paragraph of page 7 of the machine translation. Response to Arguments Applicant's arguments filed 17 September 2026 have been fully considered but they are not persuasive. Applicant argues that Choi does not teach or suggest the newly amended limitation. The Examiner has fully considered the argument but has not found it to be persuasive. As stated in the above rejection, Okamoto teaches wherein two injection ports can be located on one of the short-side surfaces but is silent in regard to wherein the injection ports are positioned such that they overlap with the negative electrode current collecting portion and/or the positive electrode current collecting portion. As Choi teaches that the injection ports do overlap with their respective current collecting portion, it would have been within the ambit of one of ordinary skill in the art to have rearranged the two injection ports located on one of the short-side surfaces as disclosed by Okamoto in the above combination such that the ports overlap with their respective current collecting portion without resulting in any new or unexpected results. The mere rearrangement of parts, without any new or unexpected results, is within the ambit of a person of ordinary skill in the art. See In re Japikse, 86 USPQ 70 (CCPA 1950) (see MPEP § 2144.04). 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TIMOTHY C CLEVELAND whose telephone number is (571)270-5041. The examiner can normally be reached M-F 7:30 AM - 3:30 PM ET. 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, Claire Wang can be reached at (571) 270-1051. 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. /TIMOTHY C CLEVELAND/Primary Examiner, Art Unit 1774
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Prosecution Timeline

Apr 09, 2024
Application Filed
Jul 13, 2026
Non-Final Rejection mailed — §103, §112
Sep 17, 2026
Response Filed
Oct 05, 2026
Final Rejection mailed — §103, §112 (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

3-4
Expected OA Rounds
60%
Grant Probability
78%
With Interview (+18.4%)
3y 0m (~6m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 943 resolved cases by this examiner. Grant probability derived from career allowance rate.

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