Prosecution Insights
Last updated: April 19, 2026
Application No. 18/786,488

PEROVSKITE SOLAR CELL, THIN-FILM COMPOSITE ELECTRODE AND PREPARATION METHOD THEREFOR, POWER GENERATING DEVICE, AND POWER CONSUMING DEVICE

Final Rejection §112
Filed
Jul 27, 2024
Examiner
TRIVISONNO, ANGELO
Art Unit
1722
Tech Center
1700 — Chemical & Materials Engineering
Assignee
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
OA Round
2 (Final)
53%
Grant Probability
Moderate
3-4
OA Rounds
2y 9m
To Grant
79%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allow Rate
350 granted / 664 resolved
-12.3% vs TC avg
Strong +26% interview lift
Without
With
+26.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
43 currently pending
Career history
707
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
53.2%
+13.2% vs TC avg
§102
15.8%
-24.2% vs TC avg
§112
25.5%
-14.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 664 resolved cases

Office Action

§112
DETAILED ACTION This is the second Office Action regarding application number 18/786,488, filed on 07/27/2024, which is a continuation of PCT/CN2022/132720, filed on 11/18/2022, and which claims foreign priority to CN 202210113364.5, filed on 01/30/2022. This action is in response to the Applicant’s Response received 12/08/2025. Status of Claims Claims 1, 2, 6, 7, and 11-16 are currently pending. Claims 3-5 and 8-10 are canceled. Claims 14-16 are new. Claims 1, 6, 11, and 12 are amended. Claims 1, 2, 6, 7, and 11-16 are examined below. Upon further examination, the Office has set forth a new ground of rejection. No claim is allowed. Claim Rejections - 35 USC § 112 Indefiniteness 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. Claims 1, 2, 6, 7, and 11-16 are rejected under 35 U.S.C. 112 as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, or for pre-AIA the applicant regards as the invention. Claim 1 recites “the layers” in line 9. There is insufficient antecedent basis for this limitation in the claim, and it is not at all clear or certain whether “the layers” refers to all the layers or some other plurality of other recited layers. Claim 11 also has this same 112 issue. Claim 11 is indefinite because it recites that both a perovskite-light absorbing layer and a second charge transport layer are both deposited on the first charge transport layer, and thus the preparation method does not make logical sense. Claim 11 also recites “the charge transport layer” in lines 13-14. There is insufficient antecedent basis for this limitation in the claim, and it is not clear which charge transport layer is referred to. All other claims depend from either independent claim 1 or 11, and are similarly rejected. Conclusion No claim is allowed. The Applicant’s amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). The Applicant is reminded of the extension of time policy as set forth in 37 C.F.R. § 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 extension fee 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. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANGELO TRIVISONNO whose telephone number is (571) 272-5201 or by email at <angelo.trivisonno@uspto.gov>. The examiner can normally be reached on MONDAY-FRIDAY, 9:00a-5:00pm EST. The examiner's supervisor, NIKI BAKHTIARI, can be reached at (571) 272-3433. /ANGELO TRIVISONNO/ Primary Examiner
Read full office action

Prosecution Timeline

Jul 27, 2024
Application Filed
Sep 24, 2025
Non-Final Rejection — §112
Dec 08, 2025
Response Filed
Mar 23, 2026
Final Rejection — §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

3-4
Expected OA Rounds
53%
Grant Probability
79%
With Interview (+26.2%)
2y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 664 resolved cases by this examiner. Grant probability derived from career allow rate.

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