Prosecution Insights
Last updated: October 25, 2026
Application No. 18/704,852

GRAPHENE DISPERSION

Non-Final OA §112
Filed
Apr 25, 2024
Priority
Oct 27, 2021 — GB 2115442.2 +1 more
Examiner
GREEN, ANTHONY J
Art Unit
1731
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Concretene Ltd.
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1391 granted / 1636 resolved
+20.0% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 9m
Avg Prosecution
45 currently pending
Career history
1677
Total Applications
across all art units

Statute-Specific Performance

§101
3.4%
-36.6% vs TC avg
§103
33.0%
-7.0% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
33.3%
-6.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1636 resolved cases

Office Action

§112
DETAILED ACTION Response to Preliminary Amendment The preliminary amendment has been entered. Accordingly claims 1-15 are currently pending in the application. Election/Restrictions Applicant's election with traverse in the reply filed on of 28 September 2026 is acknowledged. The traversal is on the grounds that the reference teaches a graphene oxide salt which is different than a graphene oxide material. This is found persuasive however WO 2022/266545 A1 (which has an earlier effective filing date than instant application) teaches in claim 1 a composition of graphene nanoplatelets, graphene oxide nanoplatelets or a combination thereof in a liquid. Therefore in light of this reference, the common technical feature is not a special technical feature and therefore the claims lack unity and restriction is proper. The requirement is still deemed proper and is therefore made FINAL. 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. Claims 1-5 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. In claim 1, the phrases “the concentration”(both occurrences) and “the additive” lack proper antecedent basis. In claim 5, the phrase “the concentration ratio” lacks proper antecedent basis. References Cited By The Examiner Tong et al “Investigation of the effects of graphene and graphene oxide nanoplatelets on the micro- and macro-properties of cementitious materials” teaches graphene and graphene oxide nanoplatelets and their use in cementitious materials. This reference fails to teach a mixture of both of them in amounts recited in independent claim 1. WO 2022/266545 A1 teaches a composition of graphene nanoplatelets, graphene oxide nanoplatelets or a combination thereof in a liquid. It does not teach the amounts recited in independent claim 1. The machine translation of CN 111348645 A was cited in the written opinion however applicant only provided an abstract of this reference. It is not seen to teach all of the cumulative limitations recited in the independent claims based on the fact that it teaches a graphene oxide salt which is different than a graphene oxide according to applicant’s arguments provided in response to the restriction requirement. Allowable Subject Matter Claims 1-5 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: The prior art fails to teach or render obvious all of the cumulative limitations recited in the independent claims. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANTHONY J GREEN whose telephone number is (571)272-1367. The examiner can normally be reached Monday-Thursday from 6:30-5. 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, Amber R. Orlando can be reached at (571) 270-3149. 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. /ANTHONY J GREEN/Primary Examiner, Art Unit 1731 ajg October 14, 2026
Read full office action

Prosecution Timeline

Apr 25, 2024
Application Filed
Oct 16, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12767599
SULFATE-POOR CALCIUM-CONTAINING POROUS MINERAL MATERIALS
3y 9m to grant Granted Oct 20, 2026
Patent 12768828
COMPOSITION FOR IDENTIFYING THE ORIGIN OF SCALE, PROCESS FOR PREPARING SAID COMPOSITION AND PROCESS FOR IDENTIFYING THE ORIGIN OF SCALE USING SAID COMPOSITION
2y 10m to grant Granted Oct 20, 2026
Patent 12767874
USE OF A CALCIUM CARBONATE OF HIGH PURITY AND HAVING A HIGH SPECIFIC SURFACE AREA IN AN INORGANIC MORTAR SYSTEM BASED ON ALUMINOUS CEMENT TO INCREASE LOAD VALUES
2y 9m to grant Granted Oct 20, 2026
Patent 12753115
LOW-COST FOUR-ELEMENT SYSTEM CEMENTITIOUS MATERIAL, PREPARATION METHOD AND APPLICATION THEREOF
2y 9m to grant Granted Oct 06, 2026
Patent 12747380
GRANULATED PARTICLE FOR COLD STORAGE MATERIAL PARTICLE, COLD STORAGE MATERIAL PARTICLE, COLD STORAGE DEVICE, REFRIGERATOR, CRYOPUMP, SUPERCONDUCTING MAGNET, NUCLEAR MAGNETIC RESONANCE IMAGING APPARATUS, NUCLEAR MAGNETIC RESONANCE APPARATUS, MAGNETIC FIELD APPLICATION TYPE SINGLE CRYSTAL PULLING APPARATUS, AND HELIUM RE-CONDENSING DEVICE
2y 7m to grant Granted Sep 29, 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
85%
Grant Probability
98%
With Interview (+13.4%)
1y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1636 resolved cases by this examiner. Grant probability derived from career allowance rate.

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