Prosecution Insights
Last updated: August 17, 2026
Application No. 18/521,555

ELECTRODE FOR LITHIUM SECONDARY BATTERY WITH CONTROLLED SURFACE ROUGHNESS

Non-Final OA §103
Filed
Nov 28, 2023
Priority
Jun 16, 2023 — RE 10-2023-0077151
Examiner
CHEVALIER, ALICIA ANN
Art Unit
Tech Center
Assignee
Kia Corporation
OA Round
1 (Non-Final)
19%
Grant Probability
At Risk
1-2
OA Rounds
2y 0m
Est. Remaining
33%
With Interview

Examiner Intelligence

Grants only 19% of cases
19%
Career Allowance Rate
37 granted / 191 resolved
-40.6% vs TC avg
Moderate +13% lift
Without
With
+13.2%
Interview Lift
resolved cases with interview
Typical timeline
4y 9m
Avg Prosecution
5 currently pending
Career history
204
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
55.5%
+15.5% vs TC avg
§102
18.0%
-22.0% vs TC avg
§112
20.9%
-19.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 191 resolved cases

Office Action

§103
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 § 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 1-5 and 7 are rejected under 35 U.S.C. 103 as being unpatentable over Fujikawa et al. (U.S. App. Pub. No. 2009/0104515). With respect to claim 1, Fujikawa, et al. teach a lithium secondary battery wherein the electrode has a sheet shape with a first main surface and a second main surface (see figure1; examiner notes that layered assembly anticipates the sheet shape as claimed and the electrode has surfaces which can be considered first and second main surfaces, respectively). In addition, the thickness of the electrode (paragraph 0055) may be between 3-100 um. While Fujikawa, et al. do not specifically teach the average thickness in the expression as recited; however, Fujikawa, et al. teach that the electrode thickness may vary from 3 – 100 micron (paragraph 0055). Based on this range and the fact that the reference teaches that the thickness may be determined at any 2 – 10 locations by taking thicknesses in a longitudinal cross-section and averaging it, examiner contends that it would be obvious to one of ordinary skill in the art at the time the invention was filed for the expression in claim 1 to be satisfied. For example, if the average thickness is 50 micron and the thickness at any given point is 50 microns, expression 1 = 0 ≤ 0.1 (50). With respect to claim 2, Fujikawa, et al. teach that the electrode comprises a flat part (item 31 – figure 3); and a plurality of pattern parts protruding with a predetermined width in a width direction of the electrode (figure 3), wherein the plurality of pattern parts is spaced apart from each other at a predetermined distance in a longitudinal direction of the electrode (figure 3). With respect to claim 3, while Fujikawa, et al. do not specifically teach the expression as recited, Fujikawa et al. teach that the distance between pattern parts is approximately 2 – 100 microns (center to center distance, see paragraph 0090). The number and interval between protrusion is not limited and thus, if the shortest distance is 2 microns, and the center to center distance between any two pattern parts is 50 microns, expression 2 is satisfied. With respect to claim 4, while Fujikawa, et al. do not specifically teach the expression as recited, if the D is 2 microns and the longest distance, E is 50 microns, expression 3 is satisfied. With respect to claim 5, the distance between pattern parts is between 2 – 100 microns, which renders obvious the range as claimed. As set forth in MPEP 2144.05, in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. With respect to claim 7, Fujikawa et al. teach a pouch type lithium secondary battery, comprising: an electrode assembly (figure 1) and a case configured to store the electrode assembly (item 14 – figure 1) wherein the electrode assembly comprises the assembly of claim 1. Claims 6 is rejected under 35 U.S.C. 103 as being unpatentable over Fujikawa et al. (U.S. App. Pub. No. 2009/0104515) in view of Ugaji et al. (U.S. App. Pub. No. 2010/0151330). With respect to claim 6, Fujikawa discloses a range for the size of the protrusions while Ugaji et al. discloses the advantages of having concave and convex portions in which lithium ions can reversibly be inserted and be extracted with ease (paragraph 0014). Having this configuration improves high-rate discharging accompanied by low temperature and discharging with long life span (paragraph 0015). Therefore, it would have been obvious to one of ordinary skill in the art, to optimize the area of the flat part and the area of a pattern part to satisfy Expression 4. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CINDY BAGNAL whose telephone number is (571)270-1080. The examiner can normally be reached M-F 8:00 am-4:00 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, Alicia Chevalier can be reached at (571) 272-1490. 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. /C.B./ Examiner, Art Unit 1788 08/04/2026 /MARIA V EWALD/ Supervisory Patent Examiner, Art Unit 1783
Read full office action

Prosecution Timeline

Nov 28, 2023
Application Filed
Aug 06, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12654419
MATTING SYSTEM
2y 11m to grant Granted Jun 16, 2026
Patent 12617189
POLYPROPYLENE FILM, LAMINATE, PACKAGING MATERIAL, AND PACKING BODY
2y 11m to grant Granted May 05, 2026
Patent 12605016
TOWEL TAB DEVICE FOR RETAINING A TOWEL IN PLACE ABOUT A USER
4y 4m to grant Granted Apr 21, 2026
Patent 12246936
WEB-WOUND ROLLS WITH MICROSPHERE TREATED EDGE AND METHODS OF MAKING SAME
7y 8m to grant Granted Mar 11, 2025
Patent 12017432
DOUBLE-SIDED ADHESIVE TAPE FOR DISPLAY AND MANUFACTURING METHOD THEREFOR
6y 8m to grant Granted Jun 25, 2024
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
19%
Grant Probability
33%
With Interview (+13.2%)
4y 9m (~2y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 191 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month