Prosecution Insights
Last updated: October 01, 2026
Application No. 18/487,804

SECONDARY BATTERY

Non-Final OA §112
Filed
Oct 16, 2023
Priority
Jan 02, 2023 — RE 10-2023-0000099
Examiner
ROLDAN RAMOS, CHRISTIAN
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung SDI Co., Ltd.
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
4m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
236 granted / 340 resolved
+4.4% vs TC avg
Strong +16% interview lift
Without
With
+15.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
27 currently pending
Career history
364
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
57.1%
+17.1% vs TC avg
§102
14.3%
-25.7% vs TC avg
§112
23.2%
-16.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 340 resolved cases

Office Action

§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 1-21 are currently pending in the application and are being examined on the merits in this Office Action. Claim Objections Claim 2 is objected to because of the following informalities: In claim 2, it is suggested to amend “the first and second uncoated portions” to - -the first uncoated portion and the second uncoated portion” to conform to prior recitation. Appropriate correction is required. 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 1-21 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 1 recited the limitation “wherein a cutting depth before winding of each of the first uncoated portion and the second uncoated portion is in a range of 100% to 150% as compared with a forming position.” It is not clear what structure constitutes the recited “forming position” and how the recited percentage relationship is determined in the claimed secondary battery. The forming position appears to correspond to a location used during a manufacturing process (e.g., pre-folded/compacting – see [0065] of the instant published application) rather than a structural feature of the claimed battery. In other words, there is no clear reference that identifies where this “forming position” exists or how it can be determined from the finished battery as it is a relative dimension/position. In addition, the limitation “before winding” merely describes when the cutting operation occurs and does not positively recite structural characteristics of the claimed secondary battery. Applicant is encouraged to amend the claim substantially in order to resolve the above issue and to capture the essence of the invention more clearly. For example, by reciting a specific structural distance (e.g., a ratio between two identifiable structural dimensions of the electrode or a specific distance from an end of the uncoated portion to the coated portion). Regarding dependent claims 2-21, these claims do not remedy the deficiencies of parent claim 1 noted above, and are rejected for the same rationale. Allowable Subject Matter The following is a statement of reasons for the indication of allowable subject matter: The “closest” prior art is Hwangbo et al. (U.S Patent Application Publication 2022/0231345). Regarding claim 1, Hwango teaches a secondary battery comprising: an electrode assembly which is wound (paragraph [0012]) and comprises a first electrode plate comprising a first uncoated portion (paragraph [0011]), a second electrode plate comprising a second uncoated portion (paragraph [0011]), and a separator between the first electrode plate and the second electrode plate (paragraph [0012]); a case (i.e., can) having a cylindrical shape and accommodating the electrode assembly (paragraph [0016]); and a cap assembly (i.e., cap) sealing the case (paragraph [0017]). However, the prior art is silent with regards to the limitation “wherein a cutting depth before winding of each of the first uncoated portion and the second uncoated portion is in a range of 100% to 150% as compared with a forming position.” Pertinent Prior Art The following prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Hwang et al. (U.S. Patent Application Publication 2016/0372779). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTIAN ROLDAN whose telephone number is (571)272-5098. The examiner can normally be reached Monday - Thursday 9:00 am - 7:00 pm. 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, TONG GUO can be reached at 571-272-3066. 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. /CHRISTIAN ROLDAN/Primary Examiner, Art Unit 1723
Read full office action

Prosecution Timeline

Oct 16, 2023
Application Filed
Jun 25, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12749747
SECONDARY BATTERY
3y 5m to grant Granted Sep 29, 2026
Patent 12744206
NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL APPARATUS
3y 4m to grant Granted Sep 22, 2026
Patent 12735317
HYDRIDE ION CONDUCTOR
2y 7m to grant Granted Sep 15, 2026
Patent 12725812
DEVICE AND METHOD FOR CLEANING A FLUID FOR THE OPERATION OF A FUEL CELL
4y 1m to grant Granted Sep 01, 2026
Patent 12719071
COMPOSITE HIGH-TEMPERATURE PROTON EXCHANGE MEMBRANE FOR FUEL CELL, PREPARATION METHOD THEREFOR AND USE THEREOF
3y 5m to grant Granted Aug 25, 2026
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
85%
With Interview (+15.7%)
3y 4m (~4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 340 resolved cases by this examiner. Grant probability derived from career allowance rate.

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