Prosecution Insights
Last updated: July 17, 2026
Application No. 18/282,514

PROCESS FOR SEEDING A SOLID LIGNOCELLULOSIC MATERIAL WITH A FUNGAL BIOMASS

Non-Final OA §102
Filed
Sep 15, 2023
Priority
Mar 16, 2021 — FR FR2102617 +1 more
Examiner
SALAMON, PETER A
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Université D’Aix-Marseille
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
718 granted / 831 resolved
+21.4% vs TC avg
Moderate +6% lift
Without
With
+5.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
20 currently pending
Career history
849
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
66.2%
+26.2% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 831 resolved cases

Office Action

§102
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 . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claim(s) 18 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 20080145577 A1 to Bayer et al., hereinafter “Bayer” and evidenced by the NPL’s “Is Plearotus Ostreatus a mycelium forming eukaryote?, Google search 5/29/26 and “What is the thickness of a piece of paper?, Google search 5/29/26. Bayer is directed to a method for producing grown (composite) materials and the products made by the method [0002]. In one embodiment, the method of making a composite material comprises the steps of forming an inoculum including a preselected fungus; forming a mixture of a substrate of discrete particles and a nutrient material that is capable of being digested by the fungi; adding the inoculum to the mixture; and allowing the fungus to digest the nutrient material in the mixture over a period of time sufficient to grow hyphae and to allow the hyphae to form a network of inter-connected mycelia cells through and around the discrete particles thereby bonding the discrete particles together to form a self-supporting composite material. Regarding claim 18, Bayer teaches a composite material at Example 6 comprising rice hulls, dried distillers grains, ground cellulose (paper), birch sawdust, all solid lignocellulose materials, and an inoculum further comprising Plearotus Ostreatus and water. Plearotus Ostreatus, commonly called the pearl oyster mushroom is a mycelium-forming eukaryote. (See NPL titled “Is Plearotus Ostreatus a mycelium forming eukaryote?). The materials are mixed, put in molds, incubated for 14 days at 100% RH, removed from the incubator, dried and then cured [0166 – 0181]. The cellulose paper was ground to 1mm x 1mm. A standard sheet of ordinary printer paper is approximately 0.1mm thick. See “What is the thickness of a piece of paper?, Google search 5/29/26. Therefore, 1 mm / 0.1mm = 10, which is greater than 2. Allowable Subject Matter Claims 1 – 17 are allowed. Prior Art of Record US 1869517 teaches the manufacture of mushroom spawn. US 2044861 teaches the growth of mushroom spawn on cellulosic substrates. US 20150101509 A1 teaches compressing biocomposite material disclosed of discrete particles and a network of interconnected glucan containing mycelia cells. NPL titled Engineered mycelium composite construction materials form fungal biorefineries: A critical review, Jones et al., Materials and Design, 187 (2020), 108397 Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PETER A. SALAMON whose telephone number is 571-270-3018. The examiner can normally be reached M-F: 9AM - 6PM. 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, Curtis Mayes can be reached at 571-272-1234. 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. PAS 5/29/26 /PETER A SALAMON/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Sep 15, 2023
Application Filed
Jun 03, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12679954
LIGHT-TRANSMISSIVE FILM, MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE COMPRISING SAME
3y 7m to grant Granted Jul 14, 2026
Patent 12667645
Ionic Polymers for Medical Device Applications
3y 7m to grant Granted Jun 30, 2026
Patent 12668682
CURABLE COMPOSITION CONTAINING RICE HUSK ASH BIOSILICA TOUGHENED EPOXY RESIN
3y 0m to grant Granted Jun 30, 2026
Patent 12662601
CLEAR COATING ANTIMICROBIAL COMPOSITIONS, METHODS OF PREPARATION, AND USES THEREOF FOR CONFERRING ANTIMICROBIAL ACTIVITY TO A SURFACE
3y 0m to grant Granted Jun 23, 2026
Patent 12655286
GRAFTED POLYMER AND USE THEREOF
2y 9m to grant Granted Jun 16, 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
86%
Grant Probability
92%
With Interview (+5.5%)
2y 4m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 831 resolved cases by this examiner. Grant probability derived from career allowance rate.

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