Prosecution Insights
Last updated: July 17, 2026
Application No. 18/498,498

BACK CONTACT SOLAR BATTERY AND PREPARATION METHOD THEREOF

Final Rejection §112
Filed
Oct 31, 2023
Priority
Feb 10, 2023 — CN 202310096904.8
Examiner
DAM, DUSTIN Q
Art Unit
1721
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Trina Solar Co., Ltd.
OA Round
4 (Final)
23%
Grant Probability
At Risk
5-6
OA Rounds
1y 10m
Est. Remaining
48%
With Interview

Examiner Intelligence

Grants only 23% of cases
23%
Career Allowance Rate
159 granted / 705 resolved
-42.4% vs TC avg
Strong +25% interview lift
Without
With
+24.9%
Interview Lift
resolved cases with interview
Typical timeline
4y 7m
Avg Prosecution
37 currently pending
Career history
741
Total Applications
across all art units

Statute-Specific Performance

§103
76.9%
+36.9% vs TC avg
§102
20.1%
-19.9% vs TC avg
§112
1.3%
-38.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 705 resolved cases

Office Action

§112
DETAILED ACTION Summary This Office Action is in response to the Amendments to the Claims and Remarks filed March 5, 2026. In view of the Amendments to the Claims filed March 5, 2026, the rejections of claims 1, 2, 4-6, and 8-11 under 35 U.S.C. 112(a) previously presented in the Office Action sent December 5, 2025 have been substantially maintained and modified only in response to the Amendments to the Claims. In view of the Amendments to the Claims filed March 5, 2026, the rejections of claims 1, 2, 4-6, and 8-11 under 35 U.S.C. 102(a)(1) and 35 U.S.C. 103 previously presented in the Office Action sent December 5, 2025 have been withdrawn. Claims 1, 2, 4-6, and 8-11 are currently pending. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1, 2, 4-6, and 8-11 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claims 1 and 8 recite, “material of the first isolation region is different from material of the second isolation region”. The specification, as originally filed, does not evidence applicant had in possession an invention including the full scope of material of the first isolation region is different from material of the second isolation region. The specification does not discuss or describe material of the first isolation region being different from material of the second isolation region. Dependent claims are rejected for dependency. Claim 1 and 8 recite, “a plurality of first electrodes spaced apart from each other and arranged along the longitudinal direction along the length of the second electrode”. The specification, as originally filed, does not evidence applicant had in possession an invention including a plurality of first electrodes spaced apart from each other and arranged along the longitudinal direction along the length of the second electrode. The specification teaches a first electrode 161 but does not depict or describe any embodiment including a plurality of first electrodes spaced apart from each other and arranged along the longitudinal direction along the length of the second electrode. Dependent claims are rejected for dependency. Claim 1 and 8 recite, “wherein as viewed in a plan view, one second electrode intersects a plurality of first electrodes”. The specification, as originally filed, does not evidence applicant had in possession an invention including wherein as viewed in a plan view, one second electrode intersects a plurality of first electrodes. The specification does not depict or describe any second electrode intersecting any first electrode, let alone a plurality of first electrodes as viewed in a plan view. Dependent claims are rejected for dependency. Response to Arguments Applicant's arguments filed March 5, 2026 have been fully considered but they are not persuasive. Applicant notes the newly added claimed language is not found within Fig. 6 of the Bende et al. reference. However, the Bende et al. reference was not cited in the rejections of the claims in the most recent Office Action sent December 5, 2025. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DUSTIN Q DAM whose telephone number is (571)270-5120. The examiner can normally be reached Monday through Friday, 6:00 AM to 2:00 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, Allison Bourke can be reached at (303) 297-4684. 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. /DUSTIN Q DAM/Primary Examiner, Art Unit 1721 April 17, 2026
Read full office action

Prosecution Timeline

Show 2 earlier events
Apr 22, 2025
Non-Final Rejection mailed — §112
Jul 14, 2025
Response Filed
Aug 04, 2025
Final Rejection mailed — §112
Oct 22, 2025
Request for Continued Examination
Oct 24, 2025
Response after Non-Final Action
Dec 05, 2025
Non-Final Rejection mailed — §112
Mar 05, 2026
Response Filed
Apr 21, 2026
Final Rejection mailed — §112 (current)

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

5-6
Expected OA Rounds
23%
Grant Probability
48%
With Interview (+24.9%)
4y 7m (~1y 10m remaining)
Median Time to Grant
High
PTA Risk
Based on 705 resolved cases by this examiner. Grant probability derived from career allowance rate.

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