Prosecution Insights
Last updated: July 17, 2026
Application No. 19/264,682

PROCESS FOR FABRICATING A REDUCED GRAPHENE OXIDE-BASED ANTIFOULING MARINE COATING MATERIAL

Non-Final OA §112
Filed
Jul 09, 2025
Examiner
LEONG, NATHAN T
Art Unit
Tech Center
Assignee
Princess Nourah Bint Abdulrahman University
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
1y 10m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
541 granted / 760 resolved
+11.2% vs TC avg
Strong +24% interview lift
Without
With
+24.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
17 currently pending
Career history
774
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
83.2%
+43.2% vs TC avg
§102
4.7%
-35.3% vs TC avg
§112
8.0%
-32.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 760 resolved cases

Office Action

§112
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 Objections Claim 1 is objected to because of the following informalities: In claim 1, line 11, “wate” is misspelled. In claim 1, lines 24-25, “comprising” should be changed to “comprises”. Appropriate correction is required. Claim Rejections - 35 USC § 112 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. Claims 1-17 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 1 contains the limitation “the graphene oxide solution dispersion”, however this limitation lacks proper antecedent basis. The claim introduces only a dispersed graphene oxide solution and a dispersed reduced graphene oxide solution; as such, the claim as written is unclear. The dependent claims are likewise rejected as failing to cure the deficiencies of claim 1. Allowable Subject Matter Claims 1-17 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: WO 2013/040636 is considered the closest prior art of record. WO ‘636 teaches a method of producing reduced or partially reduced graphene oxide films (abstract) which may be used as an anti-fouling coating on marine structures (page 13). WO ‘636 teaches graphenes can be produced by dipping graphene oxide flakes in hydrazine, and heat (page 1), but teaches this is harsh and toxic. WO ‘636 further outlines that the rGO films may be formed in milliQ water and sonication in a mixture of potassium permanganate and sulphuric acid (Example 1). None of the prior art teach all of the specifically claimed steps of producing the reduced graphene oxide dispersion and forming said composite material and application of the composite material as claimed. There would have been no apparent reason or motivation to have modified the prior art to arrive at the claimed invention. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHAN T. LEONG whose telephone number is (571)270-5352. The examiner can normally be reached M-F 10:00-6:00pm. 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, Gordon Baldwin can be reached at 571-272-5166. 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. /NATHAN T LEONG/Primary Examiner, Art Unit 1718
Read full office action

Prosecution Timeline

Jul 09, 2025
Application Filed
Jun 26, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 9m to grant Granted Jun 30, 2026
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Patent 12655352
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3y 0m to grant Granted Jun 16, 2026
Patent 12654198
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1y 8m to grant Granted Jun 16, 2026
Patent 12649169
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2y 3m to grant Granted Jun 09, 2026
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
71%
Grant Probability
95%
With Interview (+24.1%)
2y 10m (~1y 10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 760 resolved cases by this examiner. Grant probability derived from career allowance rate.

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