Prosecution Insights
Last updated: September 17, 2026
Application No. 18/868,075

COMPOSITE POWDER CONTAINING PRIMARY NANOPARTICLES OF ALUMINUM OR ALUMINUM OXIDE

Non-Final OA §102§112
Filed
Nov 21, 2024
Priority
May 26, 2022 — provisional 63/345,949 +1 more
Examiner
FELTON, AILEEN BAKER
Art Unit
1734
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Helicon Chemical Company
OA Round
1 (Non-Final)
52%
Grant Probability
Moderate
1-2
OA Rounds
2y 7m
Est. Remaining
69%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
232 granted / 447 resolved
-13.1% vs TC avg
Strong +17% interview lift
Without
With
+17.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 5m
Avg Prosecution
43 currently pending
Career history
496
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
64.8%
+24.8% vs TC avg
§102
15.8%
-24.2% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 447 resolved cases

Office Action

§102 §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 . Election/Restrictions Claims 8-18 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 4/15/2026. Claim Rejections - 35 USC § 102 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. Claims 1-7 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Buckner (10501385). Regarding claims 1-3 and 6, Buckner discloses nanosize aluminum that is coated with an organic layer (col. 5, lines 55-65), the organic layer will separate the particles from each other. Buckner further discloses the particles mixed with binders such as silicone or polypropylene (meets polymeric material) and wax(meets organic material) (col. 5 and 6). The particles are shaped into larger particles (col. 7, lines 25-40). Regarding claim 4, the aluminum particles are unagglomerated since they have a coating to keep them separated (see fig. 2). Regarding claim 5, Buckner discloses that the nanoparticles can be from 25-75 % of the composite (col. 7, lines 58-65). Regarding claim 7, Buckner discloses the additional of optional materials such as oxidizers, fuel, etc. (col. 7, lines 25-40). 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. Claim 7 is 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. Regarding claim 7, the phrase "such as" renders the claim indefinite because it is unclear whether the limitations following the phrase are part of the claimed invention. See MPEP § 2173.05(d). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AILEEN BAKER FELTON whose telephone number is (571)272-6875. The examiner can normally be reached Monday 9-5:30, Thursday 11-3, Friday 9-5:30. 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, Jonathan Johnson can be reached at 571-272-1177. 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. /AILEEN B FELTON/Primary Examiner, Art Unit 1734
Read full office action

Prosecution Timeline

Nov 21, 2024
Application Filed
Jun 25, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Thruster Propellants
3y 9m to grant Granted Sep 15, 2026
Patent 12723009
PROPELLANT CHARGE
1y 9m to grant Granted Sep 01, 2026
Patent 12715821
METAL HYDRIDE NANOPARTICLES
2y 5m to grant Granted Aug 25, 2026
Patent 12709586
SYSTEMS AND METHODS FOR CONTROLLABLE SYNTHESIS OF ENERGETIC NANOCOMPOSITES
1y 12m to grant Granted Aug 18, 2026
Patent 12692208
REDUCED VAPOR-TOXICITY HYDRAZINE COMPOSITION
5y 1m to grant Granted Jul 28, 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
52%
Grant Probability
69%
With Interview (+17.3%)
4y 5m (~2y 7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 447 resolved cases by this examiner. Grant probability derived from career allowance rate.

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