Prosecution Insights
Last updated: May 29, 2026
Application No. 18/794,690

Biomass-based Biocharcoals

Non-Final OA §103
Filed
Aug 05, 2024
Priority
Aug 03, 2023 — provisional 63/530,508
Examiner
HINES, LATOSHA D
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Board Of Trustees Of Western Michigan University
OA Round
2 (Non-Final)
51%
Grant Probability
Moderate
2-3
OA Rounds
1y 7m
Est. Remaining
73%
With Interview

Examiner Intelligence

Grants 51% of resolved cases
51%
Career Allowance Rate
482 granted / 950 resolved
-14.3% vs TC avg
Strong +23% interview lift
Without
With
+22.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
49 currently pending
Career history
1023
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
89.3%
+49.3% vs TC avg
§102
4.9%
-35.1% vs TC avg
§112
3.6%
-36.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 950 resolved cases

Office Action

§103
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 . DETAILED ACTION This Final Office action is based on the 18/794690 application originally filed August 05, 2024. Claims 17-34, filed November 20, 2025, are pending and have been fully considered. Claims 1-16 have been canceled. Claims 17-34 are new. Election/Restrictions Newly submitted claims 17-34 are directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: The original claims 1-16, filed August 05, 2024, are directed to “a low-energy method of producing biocharcoal from woody and/or non-woody biomass”. The newly submitted claims 17-34 are directed to an independent or distinct invention from the originally filed claims. Particularly, independent claim 17 is directed to “a low-energy method of producing biocharcoal from cellulose-containing material” including the claimed process includes converting the cellulose-containing material into a hydrogel comprising cellulose, which differed from now canceled independent claim 1. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claims 17-34 are withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LATOSHA D HINES whose telephone number is (571)270-5551. The examiner can normally be reached Monday thru Friday 9:00 AM - 6:00 PM. 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, Prem Singh can be reached at 571-272-6381. 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. /Latosha Hines/Primary Examiner, Art Unit 1771
Read full office action

Prosecution Timeline

Aug 05, 2024
Application Filed
May 21, 2025
Non-Final Rejection mailed — §103
Nov 20, 2025
Response Filed
Dec 19, 2025
Final Rejection mailed — §103
Mar 19, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
51%
Grant Probability
73%
With Interview (+22.6%)
3y 5m (~1y 7m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 950 resolved cases by this examiner. Grant probability derived from career allowance rate.

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