Prosecution Insights
Last updated: April 19, 2026
Application No. 18/075,852

CROSSLINKED BINDER FOR ALL SOLID-STATE BATTERY AND METHOD OF PREPARING SAME

Non-Final OA §112
Filed
Dec 06, 2022
Examiner
SRIPATHI, ANKITH REDDY
Art Unit
1728
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Seoul National University R&Db Foundation
OA Round
1 (Non-Final)
67%
Grant Probability
Favorable
1-2
OA Rounds
3y 5m
To Grant
93%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
74 granted / 111 resolved
+1.7% vs TC avg
Strong +26% interview lift
Without
With
+26.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
67 currently pending
Career history
178
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
68.6%
+28.6% vs TC avg
§102
14.1%
-25.9% vs TC avg
§112
12.6%
-27.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 111 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 . Election/Restrictions Applicant’s election without traverse of Claims 1-6 in the reply filed on October 9th, 2025 is acknowledged. 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. Claim 1-6 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 and Claim 5 recite “all or part of an oxygen atom of the carbonyl group are substituted with a nitrogen atom” is unclear as the language refers to all or part of a singular “an oxygen atom” is unclear how part of an oxygen atom can be substituted. For purposes of examination the examiner is interpreting “all or part of an oxygen atom of the carbonyl group are substituted with a nitrogen atom” to refer to substituting one of the oxygen atoms out of all or part of the carbonyl groups”. Claim 1 and claim 5 further recite “all or a part of an oxygen atom of the carbonyl group are substituted with a nitrogen atom of the amino groups such that a first end of the linker is bonded to the carbonyl group of one polymer and a second end of the linker is bonded to the carbonyl group of another polymer” is unclear as the claim language claims “a polymer comprising a carbonyl group” and it is unclear as to whether the carbonyl groups of the first polymer and another polymer are also substituted with amino groups. For purposes of examination, the examiner is interpreted this claim language to mean that when the binder overall polymer structure is crosslinked, that the crosslinkers of the polymer are substituted carbonyl groups where the oxygen is substituted with the nitrogen atom of the amino group. Allowable Subject Matter Claims 1-6 are indicated as allowable. The following is a statement of reasons for the indication of allowable subject matter: Claim 1 and Claim 5 claim a binder for a lithium secondary battery comprising: a polymer comprising a carbonyl group; and a linker comprising amino groups at both ends, wherein the binder is in state of crosslinked, and all or a part of an oxygen atom of the carbonyl group are substituted with a nitrogen atom of the amino groups such that a first end of the linker is bonded to the carbonyl group of one polymer and a second end of the linker is bonded to the carbonyl group of another polymer. The closest prior art is Zou (US20170191955). Zou discloses a polyurethaneurea polymers with electrophilic functional groups includes carbonyl and amine groups ([0120]). Zou further discloses wherein the polyurethaneurea polymers can be crosslinked amongst the electrophilic groups ([0120]). Zou further discloses wherein the polymer synthesis is completed in an NMP solvent ([0267]). Zou further discloses wherein acid can be used in the synthesis process ([0268]). Zou’s synthesis process is distinct from the instant in that Zou does not teach or disclose acetic acid as used in the instant. Furthermore Zou does not teach or suggest the carbonyl group are substituted with a nitrogen atom of the amino groups such that a first end of the linker is bonded to the carbonyl group of one polymer and a second end of the linker is bonded to the carbonyl group of another polymer. Therefore Claim 1 and Claim 5 contain allowable subject matter. Claims 2-4 and 6 are allowable as dependent claims from an allowable independent claim. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANKITH R SRIPATHI whose telephone number is (571)272-2370. The examiner can normally be reached Monday - Friday: 7:30 am - 5:00pm. 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, Matthew Martin can be reached at 571-270-7871. 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. /ANKITH R SRIPATHI/Examiner, Art Unit 1728 /MATTHEW T MARTIN/Supervisory Patent Examiner, Art Unit 1728
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Prosecution Timeline

Dec 06, 2022
Application Filed
Jan 23, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12555780
NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME
2y 5m to grant Granted Feb 17, 2026
Patent 12523705
Battery Apparatus and Current Sensor Diagnosis Method
2y 5m to grant Granted Jan 13, 2026
Patent 12519101
CERIA-CARBON-SULFUR COMPOSITE, METHOD FOR PREPARING SAME, AND POSITIVE ELECTRODE AND LITHIUM-SULFUR BATTERY COMPRISING SAME
2y 5m to grant Granted Jan 06, 2026
Patent 12506139
Lithium-Doped Silicon-Based Oxide Negative Electrode Active Material, Method of Preparing the Same, and Negative Electrode and Secondary Battery Including the Same
2y 5m to grant Granted Dec 23, 2025
Patent 12489161
SECONDARY BATTERY AND BATTERY MODULE
2y 5m to grant Granted Dec 02, 2025
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
67%
Grant Probability
93%
With Interview (+26.2%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 111 resolved cases by this examiner. Grant probability derived from career allow rate.

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