Prosecution Insights
Last updated: April 19, 2026
Application No. 18/234,813

ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY INCLUDING THE SAME

Non-Final OA §102§103§112
Filed
Aug 16, 2023
Examiner
YOON, KEVIN E
Art Unit
1735
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung Electronics
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allow Rate
392 granted / 663 resolved
-5.9% vs TC avg
Strong +44% interview lift
Without
With
+43.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
36 currently pending
Career history
699
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
52.5%
+12.5% vs TC avg
§102
24.1%
-15.9% vs TC avg
§112
17.8%
-22.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 663 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 . 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 2-5 and 8-11 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 2 recites the limitation "the other surface" in line 4. There is insufficient antecedent basis for this limitation in the claim. Claim 8 recites the limitation "the other surface" in line 4. There is insufficient antecedent basis for this limitation in the claim. Claim Rejections - 35 USC § 102 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1-6 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Lee et al. (US 2024/0266700 A1, hereinafter Lee). Re Claim 1. Lee teaches an electrode assembly (Fig. 6, item 10) comprising: a first electrode (item 11) having a first coated portion (item 11b) and a first uncoated portion (item 11a) at an edge of the first coated portion; a second electrode (item 12) having a second coated portion (item 12b) and a second uncoated portion (item 12a) at an edge of the second coated portion; a separator (item 13) between the first electrode and the second electrode; a first insulating layer (item 14 on the left side of item 11a) on one surface of the first uncoated portion; and a second insulating layer (item 14 on the right side of item 11a) on another surface of the first uncoated portion, wherein lengths of the first insulating layer and the second insulating layer are different from each other (Fig. 6). Re Claim 2. Lee teaches wherein the first uncoated portion is bent toward a center of the electrode assembly (Fig. 6, para. 128) and has a portion overlapping and electrically connected to an adjacent first uncoated portion (Fig. 1, para. 129), and wherein the other surface of the first uncoated portion faces an end portion of the second electrode and is spaced apart from the end portion of the second electrode (Fig. 6). Re Claim 3. Lee teaches wherein the first uncoated portion has a first region (a vertical portion of item 11a) extending from the first coated portion and a second region (a horizontal portion of item 11a) bent from the first region, wherein the second region has a portion overlapping the adjacent first uncoated portion (Fig. 6), wherein the first insulating layer is on the first region, and wherein the second insulating layer is on the second region (Fig. 6). Re Claim 4. Lee teaches the second insulating layer is on a part of the second region (Fig. 6), wherein the second region has an exposed surface at where the other surface of the first uncoated portion is exposed (para. 129), and wherein the exposed surface of the second region contacts one surface of the adjacent first uncoated portion (para. 129). Re Claim 5. Lee teaches wherein the second insulating layer is on the first region (Fig. 6). Re Claim 6. Lee teaches wherein the first electrode is a positive electrode, and the second electrode is a negative electrode (para. 103). Claim Rejections - 35 USC § 103 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. 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. Claim(s) 7-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Lee in view of Lee (US 2012/0107655 A1, hereinafter Lee ‘655). Re Claim 7. Lee teaches a rechargeable battery (Fig. 2 & 6, item 1) comprising: an electrode assembly (Fig. 6, item 10) comprising: a first electrode (item 11) having a first coated portion (item 11b) and a first uncoated portion (item 11a) at an edge of the first coated portion; a second electrode (item 12) having a second coated portion (item 12b) and a second uncoated portion (item 12a) at an edge of the second coated portion; a separator (item 13) between the first electrode and the second electrode; a first insulating layer (item 14 on the left side of item 11a) on one surface of the first uncoated portion; and a second insulating layer (item 14 on the right side of item 11a) on another surface of the first uncoated portion, lengths of the first insulating layer and the second insulating layer being different from each other (Fig. 6); a cylindrical case (item 20) accommodating the electrode assembly; a cap assembly (item 30) covering and sealing the cylindrical case; and an electrolyte within the cylindrical case (para. 104). Lee fails to specifically teach a center pin at a center of the electrode assembly. The invention of Lee ‘655 encompasses secondary battery. Lee ‘655 teaches a center pin (Fig. 2, item 140) at a center of the electrode assembly (item 132). In view of Lee ‘655, it would have been obvious to one of ordinary skill in the art at the time of invention to modify the invention of Lee to employ a center pin at a center of the electrode assembly, since Lee ‘655 teaches the advantage of using it, which is to suppress deformation and movement of the electrode assembly due to charge/discharge operation (para. 64). Re Claims 8-12. See rejections of claims 2-6, respectively. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892. The rejections above rely on the references for all the teachings expressed in the text of the references and/or one of ordinary skill in the art would have reasonably understood from the texts. Only specific portions of the texts have been pointed out to emphasize certain aspects of the prior art, however, each reference as a whole should be reviewed in responding to the rejection, since other sections of the same reference and/or various combinations of the cited references may be relied on in future rejections in view of amendments. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN E YOON whose telephone number is (571)270-5932. The examiner can normally be reached Monday-Friday 9 AM- 5 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, Keith Walker can be reached at 571-272-3458. 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. /KEVIN E YOON/Primary Examiner, Art Unit 1735 3/18/2026
Read full office action

Prosecution Timeline

Aug 16, 2023
Application Filed
Mar 22, 2026
Non-Final Rejection — §102, §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

1-2
Expected OA Rounds
59%
Grant Probability
99%
With Interview (+43.6%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 663 resolved cases by this examiner. Grant probability derived from career allow rate.

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