Prosecution Insights
Last updated: July 17, 2026
Application No. 18/486,157

BATTERY CELL PRESSING DEVICE

Non-Final OA §112
Filed
Oct 13, 2023
Priority
Nov 30, 2022 — RE 10-2022-0164737
Examiner
BERRESFORD, JORDAN ELIZABETH
Art Unit
1727
Tech Center
1700 — Chemical & Materials Engineering
Assignee
SK Inc.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
123 granted / 178 resolved
+4.1% vs TC avg
Moderate +8% lift
Without
With
+8.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
26 currently pending
Career history
207
Total Applications
across all art units

Statute-Specific Performance

§103
86.0%
+46.0% vs TC avg
§102
8.9%
-31.1% vs TC avg
§112
5.2%
-34.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 178 resolved cases

Office Action

§112
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted 10/13/2023 was received and has been considered by the examiner. Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they include the following reference character(s) not mentioned in the description: 5 in prior art Fig. 1. Corrected drawing sheets in compliance with 37 CFR 1.121(d), or amendment to the specification to add the reference character(s) in the description in compliance with 37 CFR 1.121(b) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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 12-13, 18, and 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. Claim 12 recites the limitation "the magnetic force" in line 2. There is insufficient antecedent basis for this limitation in the claim, as it is interpreted by the examiner that this magnetic force is different than the magnetic force is claim 1, as this magnetic force is in a specific direction as represented by the top arrow of fig. 3, and opposite in direction to the magnetic force referenced in claim 13. Claim 13 recites the limitation "the magnetic force" in line 2. There is insufficient antecedent basis for this limitation in the claim, as it is interpreted by the examiner that this magnetic force is different than the magnetic force is claim 1, as this magnetic force is in a specific direction as represented by the bottom arrow of fig. 3, and opposite in direction to the magnetic force referenced in claim 12. Claim 18 recites the limitation "the lower plate" in line 2. There is insufficient antecedent basis for this limitation in the claim. Claim 20 recites the limitation "the upper plate" in line 2. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claims 1-11, 14-17, and 19 are allowed. The following is a statement of reasons for the indication of allowable subject matter: The closest pieces of prior art found during search and consideration were Yuhara et al. (U.S. 20140013597), Choi et al. (U.S. 20240243342), Harris et al. (U.S. 20230299328), and Ogata et al. (U.S. 20210091403), however each lacked limitations to read on claim 1. PNG media_image1.png 310 446 media_image1.png Greyscale Yuhara disclosed primarily the same pressing jig configuration as claimed, as can be seen by the comparison of Yuhara’s Fig. 5C (left) with applicant’s Fig. 4 (right) below. However, the pressing jig of Yuhara is applied to separators surround an electrode plate to create an electrode via an assembly line. Therefore, modifying Yuhara to teach an applied current to create magnetic forces would be inappropriate, as the magnetic forces serve no purpose during electrode assembly. PNG media_image2.png 194 350 media_image2.png Greyscale Choi discloses the applied current to an electrode assembly under a pressurized state to see effects during charging/discharging ([0040]; [0045]), however the overall pressure mechanism uses a pressurized fluid, rather than the pressing jig configuration claimed including two pluralities of plates and pressing mechanisms separated by a cell. There is no motivation for changing the entire pressure mechanism of Choi without rendering the purpose of the intended use of the invention ineffective. Harris and Ogata each disclose pressing jogs closer to that of the claimed invention. However, Harris lacks the plurality of plates surround the pressing member, and both Harris and Ogata lack an applied current to create a magnetic force at the pressing mechanisms. Similar to the issue described above with Yuhara, implementing the applied current would be inappropriate in either of the prior arts, as the resulting magnetic force is not required to obtain the pressure sensing information gathered. Due to the lack of prior art found during search and consideration, claim 1 is allowable. Claims 12-13, 18, and 20 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JORDAN E BERRESFORD whose telephone number is (571)272-0641. The examiner can normally be reached M-F 8:00 am - 5:00 pm 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 (572)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. /J.E.B./Examiner, Art Unit 1727 /Maria Laios/Primary Examiner, Art Unit 1727
Read full office action

Prosecution Timeline

Oct 13, 2023
Application Filed
Jun 11, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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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
69%
Grant Probability
78%
With Interview (+8.4%)
3y 1m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 178 resolved cases by this examiner. Grant probability derived from career allowance rate.

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