Prosecution Insights
Last updated: October 23, 2026
Application No. 18/774,135

METAL-FREE SOLAR-REFLECTIVE INFRARED-EMISSIVE PAINTS AND METHODS OF PRODUCING THE SAME

Final Rejection §112
Filed
Jul 16, 2024
Priority
Oct 03, 2018 — provisional 62/740,552 +3 more
Examiner
HUANG, CHENG YUAN
Art Unit
1787
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Purdue Research Foundation
OA Round
2 (Final)
39%
Grant Probability
At Risk
3-4
OA Rounds
1y 9m
Est. Remaining
62%
With Interview

Examiner Intelligence

Grants only 39% of cases
39%
Career Allowance Rate
264 granted / 674 resolved
-25.8% vs TC avg
Strong +23% interview lift
Without
With
+23.0%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
38 currently pending
Career history
716
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
57.1%
+17.1% vs TC avg
§102
13.0%
-27.0% vs TC avg
§112
25.6%
-14.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 674 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 . 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 1-7 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 1 recites “wherein the film exhibits solar reflectance of at least 90% for the solar spectrum wavelengths of 0.3 to 3 micrometers” which does not appear to have support in the originally filed specification. While Applicant pointed to portions of the specification including Fig. 15, it is not clear where there is support to recite a solar reflectance “of at least 90%” at the specific wavelengths of 0.3 to 3 micrometers. Further, it is not clear whether the specific type of substrate and thickness of coating affect solar reflectance. While there is support to recite solar reflectance at specific thicknesses and specific substrate, there is no support to recite solar reflectance for any thickness and any type of substrate. Further, there is no support to recite at least 90% without an upper limit. Claims 2-7 all depend from claim 1 and thus, are also fail to comply with the written description requirement. Conclusion 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). 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 CHENG HUANG whose telephone number is (571)270-7387. The examiner can normally be reached on Monday-Thursday from 7 AM to 5 PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Callie Shosho, can be reached at 571-272-1123. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /CHENG YUAN HUANG/Primary Examiner, Art Unit 1787
Read full office action

Prosecution Timeline

Jul 16, 2024
Application Filed
Jun 02, 2026
Non-Final Rejection mailed — §112
Sep 02, 2026
Response Filed
Oct 02, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

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Patent 12706311
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3y 11m to grant Granted Aug 11, 2026
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PAINT COMPOSITION
2y 8m to grant Granted Aug 11, 2026
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
39%
Grant Probability
62%
With Interview (+23.0%)
4y 0m (~1y 9m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 674 resolved cases by this examiner. Grant probability derived from career allowance rate.

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