Prosecution Insights
Last updated: April 19, 2026
Application No. 18/203,827

COLORED ANTI-FOULING ANTI-CORROSION SURFACE COATING, USES THEREOF, COLORED ANTI-FOULING ANTI-CORROSION SURFACE LAYER, AND COLORED ANTI-FOULING ANTI-CORROSION METAL

Non-Final OA §101§112
Filed
May 31, 2023
Examiner
HUHN, RICHARD A
Art Unit
1764
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Rayoung Chemtech Inc.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
72%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allow Rate
585 granted / 882 resolved
+1.3% vs TC avg
Moderate +6% lift
Without
With
+6.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
36 currently pending
Career history
918
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
37.2%
-2.8% vs TC avg
§102
22.3%
-17.7% vs TC avg
§112
25.3%
-14.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 882 resolved cases

Office Action

§101 §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 . Priority Prior-filed application 63/347,178 does not contain a disclosure of the presently recited colored coating or of the presently recited surface-modified pigment. The effective filing date of the present claims is May 31, 2023. Claim Rejections – 35 U.S.C. § 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. Claims 1-17 are rejected under 35 U.S.C. § 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Independent claim 1 recites a polysilazane in an amount of approximately “5-60%”. The claim does not set forth the basis for this percentage, such as a volume percentage or a weight percentage. For this reason, claim does not set forth the amount of polysilazane with reasonable clarity. Claim 1 additionally recites a pigment in an amount of “0.05-25%” followed by the phrase “in weight percentage (wt%, %)”. The parenthetical “(wt%, %)” includes two different recitations of a percentage, and the claim does not set forth the meaning of or any distinction among these two percentages. Because of these nonstandard and undefined percentage units, the claim does not set forth the amount of pigment with reasonable clarity. Claims 2-17 are ultimately dependent upon independent claim 1, and they are indefinite for the same reasons. Claim 3 recites amounts of three components of a polysilazane with percentage ranges. The claim does not set forth the basis for these percentages, such as a weight percentage or a percentage of repeating units. For this reason, claim does not set forth the amounts of the three components with reasonable clarity. Claim 9 recites an amount of solvent with a percentage range. The claim does not set forth the basis for the percentages, such as a weight percentage or a volume percentage. For this reason, claim does not set forth the amounts of the solvent with reasonable clarity. Claim 13 recites a layer comprising the coating of claim 1 “being applied and then hardened into a layer”. The present tense of the verb “being” indicates an active step of a process, whereas the preamble of the claim is drawn to a product rather than to a process. The claim does not set forth with reasonable clarity whether the claimed product is drawn to a layer that has been (past tense) applied and hardened, or else if the steps of applying and hardening are future intended uses of a layer. Claim 14 recites a layer ”comprising binding” the coating of claim 1. The present tense of the verb “binding” indicates an active step of a process, whereas the preamble of the claim is drawn to a product rather than to a process. The claim does not set forth with reasonable clarity whether the claimed product is drawn to a layer that has been (past tense) bound, or else if the step of binding is a future intended use of a layer. Claim Rejections – 35 U.S.C. §§ 101, 112 The following is a quotation of 35 U.S.C. § 101: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. 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 10-12 are rejected under 35 U.S.C. § 101 as being drawn to a nonstatutory subject matter and under 35 U.S.C. § 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claims 10-12 are directed to a “use”, and a “use” is not one of the four categories of patent eligible subject matter. The claims thereby fail to comply with 35 U.S.C. § 101. The claims also do not set forth any particular active steps of a method of performing the recited “use”, and therefore the claims do not inform one skilled in the art about the scope of the recited “use” with reasonable clarity. Prior Art The following prior art is considered pertinent to Applicant's disclosure and is therefore made of record although not relied upon in a rejection. US Patent No. 5,296,511 to Ohsawa describes a film-former composition comprising an organosilazane copolymer having a perfluoroalkyl group (see the abstract). The concentration of the polymer is 0.1 to 30 wt% of the composition (see col. 8, ll. 11-15). Ohsawa does not disclose a colored coating, and Ohsawa does not disclose a surface-modified pigment. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to RICHARD A. HUHN whose telephone number is (571)270-7345. The examiner can normally be reached Monday through Friday, 9 AM to 6 PM EST. 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, Arrie (Lanee) Reuther can be reached at (571) 270-7026. 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. /RICHARD A. HUHN/Primary Examiner, Art Unit 1764
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Prosecution Timeline

May 31, 2023
Application Filed
Jan 08, 2026
Non-Final Rejection — §101, §112 (current)

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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
72%
With Interview (+6.0%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 882 resolved cases by this examiner. Grant probability derived from career allow rate.

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