Prosecution Insights
Last updated: April 19, 2026
Application No. 17/995,339

Material and Generator for Generating Hydrogen Gas

Non-Final OA §102§103
Filed
Oct 03, 2022
Examiner
FELTON, AILEEN BAKER
Art Unit
1734
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
OA Round
1 (Non-Final)
51%
Grant Probability
Moderate
1-2
OA Rounds
4y 6m
To Grant
67%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allow Rate
223 granted / 435 resolved
-13.7% vs TC avg
Strong +16% interview lift
Without
With
+15.5%
Interview Lift
resolved cases with interview
Typical timeline
4y 6m
Avg Prosecution
51 currently pending
Career history
486
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
63.7%
+23.7% vs TC avg
§102
16.5%
-23.5% vs TC avg
§112
17.3%
-22.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 435 resolved cases

Office Action

§102 §103
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 Applicant’s election is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claims 4, 7-10, 13, 14, and 18-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention or species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 10/17/2025. 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, 2, 5, and 6 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Tatsumi (JP 2017024958). Regarding claims 1, 2, 6, Tatsumi discloses a solid hydrogen generating material that includes 40-90 % (0044) of the hydrogen generating agent such as sodium borohydride (0042) with a resin (binder) at less than 40 % (0050). The material has a porosity from 0-80 % (0035 and 0079) with a specific example at 60 % (0079). The composition can include other catalyst (energizer) and filler (0061). Regarding claim 5, the composition can be only the hydrogen generating material and binder and thus would not include any water generating additives. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 16 and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Tatsumi (JP 2017024958) as applied above, and further in view of Ryu (20110020215). Regarding claims 16 and 17, Ryu teaches a catalyst such as ammonium chloride for use with a hydrogen generating composition that includes sodium borohydride and a binder (0019). It would have been obvious to one having ordinary skill in the art at the time the invention was made and/or filed to use the catalyst as taught by Ryu with the composition of Tatsumi since both compositions are used for hydrogen generating and include sodium borohydride and a binder. Further, Tatsumi discloses that the composition can include catalyst so one of skill would have a reasonable expectation of success in using a different catalyst that is taught for the same type of composition with the same ingredients. Claims 3, 12, 15 are rejected under 35 U.S.C. 103 as being unpatentable over Tatsumi (JP 2017024958) as applied above, and further in view of Boucher (WO 2007098271) and Miller (20090199937). Regarding claims 3, 12, and 15, Boucher teaches that it is known to use energetic binders in a hydrogen generating composition with borohydrides (0004). Boucher further suggests that known binders that are used with energetic materials can be used. Miller teaches the use of polyvinyl tetrazole as a known fuel/binder for energetic materials (0047). The identification of the polyvinyl tetrazole as a fuel and a binder indicates that it is an energetic compound. It would have been obvious to one having ordinary skill in the art at the time the invention was made and/or filed to use the energetic binder particular the energetic fuel/binder as taught by both Boucher and Miller since Boucher indicates that it is known to use energetic binders in a hydrogen generating composition with borohydrides and that known binders that are used with energetic materials can be used. One of skill in the art would have a reasonable expectation of success since Miller identifies the polyvinyl tetrazole as a fuel and a binder thus indicating that it is energetic and since Boucher teaches that it is known to include energetic binders in hydrogen generating compositions. 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

Oct 03, 2022
Application Filed
Feb 02, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600688
SENSITIZING COMPOSITION FOR ENERGETIC HYDROGEN PEROXIDE EMULSIONS
2y 5m to grant Granted Apr 14, 2026
Patent 12595217
THERMITE BLOCK FOR STORED-DATA DESTRUCTION
2y 5m to grant Granted Apr 07, 2026
Patent 12595174
METHOD FOR PRODUCING THE PENTAZOLATE ANION USING A HYPERVALENT IODINE OXIDANT
2y 5m to grant Granted Apr 07, 2026
Patent 12559443
ENERGY-RELEASING COMPOSITE MATERIAL AND METHOD FOR MANUFACTURING SAME
2y 5m to grant Granted Feb 24, 2026
Patent 12552729
MECHANICALLY-GASSED EMULSION EXPLOSIVES AND METHODS RELATED THERETO
2y 5m to grant Granted Feb 17, 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
51%
Grant Probability
67%
With Interview (+15.5%)
4y 6m
Median Time to Grant
Low
PTA Risk
Based on 435 resolved cases by this examiner. Grant probability derived from career allow rate.

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