Prosecution Insights
Last updated: April 19, 2026
Application No. 18/467,960

NATURAL GROWN FIBER COMPOSITES FOR SUSTAINABLE BUILDING MATERIALS

Non-Final OA §102
Filed
Sep 15, 2023
Examiner
ARIANI, KADE
Art Unit
1651
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Case Western Reserve University
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
608 granted / 817 resolved
+14.4% vs TC avg
Strong +34% interview lift
Without
With
+33.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
20 currently pending
Career history
837
Total Applications
across all art units

Statute-Specific Performance

§101
3.9%
-36.1% vs TC avg
§103
31.5%
-8.5% vs TC avg
§102
18.3%
-21.7% vs TC avg
§112
32.1%
-7.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 817 resolved cases

Office Action

§102
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 . The amendment and response filed on December 19, 2025 are received. New claims 16-19 are added. Claims 1-19 are pending in this application, claims 4-15 are withdrawn from further consideration (see Restriction/Election below), and claims 1-3 and 16-19 are being examined. Restriction/Election: Applicant’s election without traverse of Group I, claims 1-3 and 16-19, in the reply filed on12/19/2025 is acknowledged. Claims 4-15 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected inventions (Groups II-IV), there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 12/19/2025. Claim Rejection - 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 1-3 and 16-19 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Jones, et al. (Fire and Materials, 2018, Vol. 42, p. 816 – 882). Regarding claim 1, Jones et al. a mycelium composite material comprising: a fungi generated mycelium fiber matrix; and a biofiller dispersed within the matrix, wherein the biofiller provides a structural element and nutrition source for the fungi and the mycelium fibers bind the biofiller (mycelium composite, rice hull and wheat grain substrates (function to support fungal growth) inoculated substrate deposited into sterile plastic moulds, hyphal growth bind the substrates, …, dehydrated square tile) (See for example, p. 817 figure 1 and its description, p. 817 paragraph 2.2 -Continued on p. 818 left-hand column 1st paragraph). Regarding claim 2, Jones et al. the mycelium composite material of claim 1, wherein the biofiller is an organic filler, an inorganic filler, or a combination thereof (rice hull and wheat grain) (See for example, p. 817 paragraph 2.2). Regarding claim 3, Jones et al. the mycelium composite material of claim 1, further including a core of fungi colonized substrate encased by a water-repellant fungi skin, wherein the core and skin include a mycelium fiber network (mycelium composite, rice hull and wheat grain substrates (function to support fungal growth) inoculated substrate) (See for example, p. 817 figure 1 and its description, p. 817 paragraph 2.2 -Continued on p. 818 left-hand column 1st paragraph). Regarding claim 16, Jones et al. the mycelium composite material of claim 1, wherein the biofiller includes a source of silica in the nutrition source to enhance fire resistance of the mycelium composite (composite constituents rice hull and glass fines containing silica) (See for example, p. 817 right-hand column paragraph 2.1). Regarding claim 1, Jones et al. the mycelium composite material of claim 1, being heated to kill any living microbes in the mycelium composite (“Preparation of mycelium composites” substrates sterilized before use, etc.) (See for example, p. 817 paragraph 2.2 -Continued on p. 818 left-hand column 1st paragraph). Regarding claim 18, Jones et al. the mycelium composite material of claim 1, being pressure molded to enhance mechanical strength of the mycelium composite material (inoculated substrate deposited into sterile plastic moulds, forming a dehydrated square tile) (See for example, p. 817 paragraph 2.2 -Continued on p. 818 left-hand column 1st paragraph, and p. 817 Figure 1 and its description). Regarding claim 19, Jones et al. the mycelium composite material of claim 1, provided on or within a building envelope (mycelium composite as a dehydrated square tiles, and mycelium composite material use in civil construction) (See for example, p. 817 Figure 1 and its description, and p. 824 left-hand column 1st paragraph). Jones et al. therefore anticipate the claimed mycelium composite material. Conclusion(s): No claims is allowed at this time. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KADE ARIANI whose telephone number is (571)272-6083. The examiner can normally be reached IFP, Monday - Friday, 8:00 AM -4:00 PM EST. 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, Melenie L. Gordon can be reached at (571)272-8037. 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. /KADE ARIANI/Primary Examiner, Art Unit 1651
Read full office action

Prosecution Timeline

Sep 15, 2023
Application Filed
Feb 17, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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PROBIOTIC COMPOSITION FOR IMPROVING SOY PROTEIN PROTEOLYSIS AND AMINO ACID PRODUCTION ACTIVITY
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2y 5m to grant Granted Mar 24, 2026
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2y 5m to grant Granted Mar 24, 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
74%
Grant Probability
99%
With Interview (+33.5%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 817 resolved cases by this examiner. Grant probability derived from career allow rate.

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