Prosecution Insights
Last updated: April 19, 2026
Application No. 17/024,910

MATERIALS AND METHODS FOR PASSIVE RADIATIVE COOLING

Non-Final OA §112
Filed
Sep 18, 2020
Examiner
WALTERS JR, ROBERT S
Art Unit
1717
Tech Center
1700 — Chemical & Materials Engineering
Assignee
The Trustees of Columbia University in the City of New York
OA Round
5 (Non-Final)
51%
Grant Probability
Moderate
5-6
OA Rounds
3y 10m
To Grant
99%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allow Rate
558 granted / 1085 resolved
-13.6% vs TC avg
Strong +51% interview lift
Without
With
+50.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
63 currently pending
Career history
1148
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
47.7%
+7.7% vs TC avg
§102
14.5%
-25.5% vs TC avg
§112
31.5%
-8.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1085 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 . Status of Application Claims 11, 12, 14 and 16-21 are pending. Claims 16-20 are withdrawn. Claims 11, 12, 14 and 21 are presented for examination. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 7/16/2025 has been entered. Response to Arguments Applicant’s arguments with respect to claim(s) 11, 12, 14 and 21 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 112(a) 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. 1. Claims 11, 12, 14 and 21 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. Claim 11 newly recites forming a continuous colorant layer and a continuous scattering layer. However, the original disclosure fails to support these new limitations. A search of the original disclosure failed to return a hit for “continuous”. There is nothing in the original disclosure which makes clear that the layers are continuous. Additionally, the scattering layer is specifically recited as porous which by definition would not be continuous. Therefore, claim 11 fails to comply with the written description requirement. Claims 12, 14 and 21 depend from claim 11 and fail to comply with the written description requirement for the same reasons. Claim Rejections - 35 USC § 112(b) 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. 2. Claims 11, 12, 14 and 21 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 11 recites leaving behind “pores in the continuous scattering layer”. However, this language is contradictory as a porous layer would by definition not be continuous. Therefore, claim 11 is indefinite. Claims 12, 14 and 21 depend from claim 11 and are indefinite for the same reasons. Conclusion Claims 11, 12, 14 and 16-21 are pending. Claims 16-20 are withdrawn. Claims 11, 12, 14 and 21 are rejected. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT S WALTERS JR whose telephone number is (571)270-5351. The examiner can normally be reached Monday-Friday 8-5. 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, Dah-Wei Yuan can be reached at 571-272-1295. 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. /ROBERT S WALTERS JR/ October 22, 2025 Primary Examiner, Art Unit 1717
Read full office action

Prosecution Timeline

Sep 18, 2020
Application Filed
Jun 29, 2023
Non-Final Rejection — §112
Dec 05, 2023
Response Filed
Dec 08, 2023
Final Rejection — §112
Jun 06, 2024
Applicant Interview (Telephonic)
Jun 06, 2024
Examiner Interview Summary
Jun 12, 2024
Request for Continued Examination
Jun 12, 2024
Response after Non-Final Action
Jun 17, 2024
Response after Non-Final Action
Jun 26, 2024
Non-Final Rejection — §112
Dec 31, 2024
Response Filed
Jan 12, 2025
Final Rejection — §112
Jul 16, 2025
Request for Continued Examination
Jul 17, 2025
Response after Non-Final Action
Oct 22, 2025
Non-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

5-6
Expected OA Rounds
51%
Grant Probability
99%
With Interview (+50.8%)
3y 10m
Median Time to Grant
High
PTA Risk
Based on 1085 resolved cases by this examiner. Grant probability derived from career allow rate.

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