Prosecution Insights
Last updated: April 19, 2026
Application No. 18/746,908

CONDUCTIVE AGENT SLURRY FOR SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE INCLUDING SAME, AND SECONDARY BATTERY

Non-Final OA §103
Filed
Jun 18, 2024
Examiner
NGUYEN, KHANH TUAN
Art Unit
1761
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Dongjin Semichem Co. Ltd.
OA Round
3 (Non-Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
2y 10m
To Grant
93%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
791 granted / 1062 resolved
+9.5% vs TC avg
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
23 currently pending
Career history
1085
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
43.0%
+3.0% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
19.0%
-21.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1062 resolved cases

Office Action

§103
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 01/08/2026 has been entered. Response to Amendment The amendment filed on 01/08/2026 is entered and acknowledged by the Examiner. Claims 1 and 15 have been amended. Claims 4-5 and 18 have been canceled. Claims 1-3, 6-17, and 19 are currently pending in the instant application. The rejection of claims 1-3, 6-17, and 19 under 35 U.S.C. 103 as being unpatentable over Koyama (WO 2021201003 Al) in view of Lee (US 2015/0364766 A1) is maintained for the reasons of record. Information Disclosure Statement The information disclosure statement (IDS) filed on 01/08/2026 is in compliance with the provisions of 37 CFR 1.97 and has been considered by the examiner. An initialed copy accompanies this Office Action. Response to Arguments Applicant's arguments filed on 01/08/2026 have been fully considered but they are not persuasive. Initially, the amendment to independent claim 1 to include a limitation of “wherein the conductive material slurry has a viscosity equal to or less than 3,400 cP at 50 s-1 and 23°C” has been considered by the Examiner. The amendment to claim 15 to depend from claim 1 is noted. Applicant’s primary argument is neither Koyama nor Lee alone or in combination disclose or suggest the feature of “wherein the conductive material slurry has a viscosity equal to or less than 3,400 cP at 50 s-1 and 23°C”. The Examiner respectfully disagrees with the Applicant’s remark. Koyama discloses a desire to obtain a positive electrode composition having low viscosity (See Abstract). Koyama also discloses that the positive electrode composition having a preferred viscosity of 1 Pa·s or more and 5 Pa·s or less (See [0082]). This viscosity equates to 1,000 cP and 5,000 cP and overlaps with the claimed viscosity range of equal to or less than 3,400 cP as required in amended claim 1. Based on this disclosure, the rejection is maintained for the reasons of record. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KHANH TUAN NGUYEN whose telephone number is (571)272-8082. The examiner can normally be reached M-F 9:00 AM to 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, Angela Brown-Pettigrew can be reached at (571) 272-2817. 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. /KHANH T NGUYEN/Primary Examiner, Art Unit 1761
Read full office action

Prosecution Timeline

Jun 18, 2024
Application Filed
Apr 18, 2025
Non-Final Rejection — §103
Jul 14, 2025
Response Filed
Oct 14, 2025
Final Rejection — §103
Jan 08, 2026
Request for Continued Examination
Jan 12, 2026
Response after Non-Final Action
Jan 24, 2026
Non-Final Rejection — §103
Apr 05, 2026
Response Filed

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

3-4
Expected OA Rounds
74%
Grant Probability
93%
With Interview (+18.6%)
2y 10m
Median Time to Grant
High
PTA Risk
Based on 1062 resolved cases by this examiner. Grant probability derived from career allow rate.

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