Prosecution Insights
Last updated: April 19, 2026
Application No. 18/340,136

METHOD FOR EXCLUDING THE AGGRESSIVE INCOMPATIBILITY TRAIT FROM STRAINS OF AGARICUS BISPORUS, AND RELATED STRAINS AND LINES

Non-Final OA §112
Filed
Jun 23, 2023
Examiner
KRUSE, DAVID H
Art Unit
1663
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Sylvan, Inc.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
90%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
1106 granted / 1354 resolved
+21.7% vs TC avg
Moderate +9% lift
Without
With
+8.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
34 currently pending
Career history
1388
Total Applications
across all art units

Statute-Specific Performance

§101
4.4%
-35.6% vs TC avg
§103
22.3%
-17.7% vs TC avg
§102
13.7%
-26.3% vs TC avg
§112
42.9%
+2.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1354 resolved cases

Office Action

§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 Applicant’s election without traverse of Group V, claims 13 and 14 in the reply filed on 9 February 2026 is acknowledged. Claims 1-12 and 15-21 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to nonelected inventions, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 9 February 2026. Applicant is reminded that upon the cancelation of claims to a non-elected invention, the inventorship must be corrected in compliance with 37 CFR 1.48(a) if one or more of the currently named inventors is no longer an inventor of at least one claim remaining in the application. A request to correct inventorship under 37 CFR 1.48(a) must be accompanied by an application data sheet in accordance with 37 CFR 1.76 that identifies each inventor by his or her legal name and by the processing fee required under 37 CFR 1.17(i). Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 13 and 14 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. The claims appear to require a specific Agaricus bisporus homokaryotic line, designated J19109-s40, and the instant Specification indicates that a culture of said line was deposited at the NRRL depository on pages 12-13. The Specification further states that the deposit is “intended to meet…all deposit requirements under the Budapest Treaty” on page 12, lines 30-31. What is at issue is that it is unclear if the deposit was made and accepted under the terms of the Budapest Treaty at the NRRL depository. The Application does not contain any deposit receipts and Applicant has not filed an independent viability statement concerning the deposit. The Examiner acknowledges Applicants assurance that the deposit will be irrevocably and without restriction or condition released to the public on page 13, line 3-5. Hence, given the fact that Agaricus bisporus homokaryotic line J19109-s40 was selected from a heterokaryon of B18287-s82 x WBL-s290 it would have required undue trial and error experimentation to select the same homokaryon from the parental heterokaryon even if the heterokaryon or the parental lines were publicly available. Claim 14 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Applicant claims a culture derived from Agaricus bisporus homokaryotic line J19109-s40 or a directly derived from said culture, such that at least 75% of its genome or genotype is present in the genome or genotype of the initial culture of Agaricus bisporus homokaryotic line J19109-s40. Applicant describes Agaricus bisporus homokaryotic line J19109-s40 predominantly by means of a deposit of biological material and six standard markers in Table II on page 36 of the Specification. The Examiner notes that Agaricus bisporus homokaryotic line J19109-s40 has the same six standard markers as parental line WBL-s290. Applicant does not describe the broad genus of derived culture(s) such that at least 75% of its genome or genotype is present in the genome or genotype of Agaricus bisporus homokaryotic line J19109-s40. Hence, it is unclear that Applicant was in possession of the invention as broadly claimed. The decision in AbbVie Deutschland GmbH & Co. v. Janssen Biotech, Inc. 111 USPQ2d 1780 (Fed. Cir. 2014) seems to be germane to the instant case. In Abbvie, an analogy is drawn between a claimed genus and a plot of land (see pages 1789-1791). Using this analogy, the Court offered that “[I]f the disclosed species only abide in a corner of the genus, one has not described the genus sufficiently to show that the inventor invented, or had possession of, the genus. He only described a portion of it.” Similar to the analogy drawn in Abbvie, in the case of Ariad Pharmaceuticals, Inc. v. Eli Lilly & Co., 94 USPQ2d 1161 (Fed. Cir. 2010), the court (at page 1171) offered: [M]erely drawing a fence around the outer limits of purposed genus is not an adequate substitute for describing a variety of materials constituting the genus and showing that one has invented a genus and not just a species. 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. Claims 13 and 14 are 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. Claim 13 is indefinite because at lines 4-5, “listed in Table 1” fails to set forth the metes and bounds of the claimed invention. Where possible, claims are to be complete in themselves. Incorporation by reference to a specific figure or table “is permitted only in exceptional circumstances where there is no practical way to define the invention in words and where it is more concise to incorporate by reference than duplicating a drawing or table into the claim. Incorporation by reference is a necessity doctrine, not for applicant’s convenience.” Ex parte Fressola, 27 USPQ2d 1608, 1609 (Bd. Pat. App. & Inter. 1993). Claim 14 is indefinite because at line 1, “derived from” and at line 5, “derived directly from” imply a product-by-process but the instant claim fails to recite any process steps. Hence, the metes and bounds of the claim are unclear. At claim 14, line 2, “a culture of claim 13” is indefinite because it is unclear what the limitation refers to. Hence, the metes and bounds of the claim are unclear. Conclusion No claims are allowed. Claims 13 and 14 appear to be free of the prior art. The Examiner finds no prior art reference to line J1909-s40 or parental line B18287-s82 or WBL-s290 or the parental line’s associated heterokaryotic line from which it was isolated. The closest prior art is Kerrigan et al (U.S. Patent 10,440,930 which teaches homokaryons isolated from heterokaryotic line J11500 in Table VI at column 28. The prior art homokaryon differs from the instantly claimed invention at the ITS, AS and FF marker/locus. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID H KRUSE whose telephone number is (571) 272-0799. The examiner can normally be reached Monday-Friday 7AM-3:30PM. 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, Amjad Abraham can be reached on (571) 270-7058. 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. /David H Kruse/ Primary Examiner, Art Unit 1663
Read full office action

Prosecution Timeline

Jun 23, 2023
Application Filed
Mar 05, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599081
PLANTS AND SEEDS OF HYBRID CORN VARIETY CH010503
2y 5m to grant Granted Apr 14, 2026
Patent 12599083
PLANTS AND SEEDS OF HYBRID CORN VARIETY CH010514
2y 5m to grant Granted Apr 14, 2026
Patent 12599084
PLANTS AND SEEDS OF HYBRID CORN VARIETY CH010525
2y 5m to grant Granted Apr 14, 2026
Patent 12593774
PLANTS AND SEEDS OF HYBRID CORN VARIETY CH010448
2y 5m to grant Granted Apr 07, 2026
Patent 12593781
PLANTS AND SEEDS OF HYBRID CORN VARIETY CH010529
2y 5m to grant Granted Apr 07, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
82%
Grant Probability
90%
With Interview (+8.8%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1354 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month