Prosecution Insights
Last updated: October 01, 2026
Application No. 19/469,758

Use of Thermolatent Catalyst to Improve Properties of Single-Layer Polyurethane Coatings

Non-Final OA §102
Filed
Sep 26, 2025
Priority
Apr 25, 2023 — EU 23169855.6 +1 more
Examiner
BOWMAN, ANDREW J
Art Unit
1717
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Covestro AG
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
Est. Remaining
79%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
596 granted / 905 resolved
+0.9% vs TC avg
Moderate +13% lift
Without
With
+13.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
42 currently pending
Career history
979
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
62.0%
+22.0% vs TC avg
§102
19.3%
-20.7% vs TC avg
§112
14.7%
-25.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 905 resolved cases

Office Action

§102
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 § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Weikard et al. (USPGPub 2018/0320019). Regarding claims 1 and 13-15, Weikard teaches that it is known to provide a single layer of polyurethane [0028] coated on the surface of a plastic substrate [0115] wherein the layer is thereafter cured by providing a polyisocyanate, an NCO-reactive compound and a thermally latent catalyst (claim 1). Regarding claim 2, Weikard teaches wherein the plastic substrate by be ABS [0115]. Regarding claim 3, Weikard further teaches wherein the polyisocyanate is aliphatic [0050]. Regarding claim 4, Weikard further teaches wherein the polyisocyanate is a derivative of hexamethylene diisocyanate. Regarding claim 5, Weikard further teaches wherein the polyisocyanate is a hexamethylene diisocyanate trimer. Regarding claim 6, Weikard further teaches wherein the NCO reactive compound is among those listed [0123]. Regarding claim 7, Weikard further teaches wherein the thermally latent catalyst is among those listed (claim 8). Regarding claim 8, Weikard further teaches wherein the catalyst is among those claimed [0096-0110]. Regarding claim 9, Weikard teaches ppm of catalyst is in range claimed [0143]. Regarding claim 10, Weikard teaches a ratio of polyisocyanates to NCO reactive compounds is within the range claimed [0053]. Regarding claim 11, Weikard further teaches a film forming step lasting 30 seconds as claimed (claim 1). Regarding claim 12, Weikard further teaches wherein the reaction takes places at a temperature in the claimed range [0127]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREW J BOWMAN whose telephone number is (571)270-5342. The examiner can normally be reached Mon-Sat 5:00AM-11:00AM. 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. /ANDREW J BOWMAN/Examiner, Art Unit 1717
Read full office action

Prosecution Timeline

Sep 26, 2025
Application Filed
Aug 26, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
66%
Grant Probability
79%
With Interview (+13.2%)
3y 5m (~2y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 905 resolved cases by this examiner. Grant probability derived from career allowance rate.

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