Prosecution Insights
Last updated: April 19, 2026
Application No. 18/199,277

FOOD PRODUCTION SYSTEM, COMPOSITIONS, AND METHODS OF USING THE SAME

Non-Final OA §103§DP
Filed
May 18, 2023
Examiner
FAN, LYNN Y
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Arizona Board of Regents
OA Round
1 (Non-Final)
47%
Grant Probability
Moderate
1-2
OA Rounds
3y 9m
To Grant
96%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allow Rate
221 granted / 472 resolved
-18.2% vs TC avg
Strong +49% interview lift
Without
With
+48.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
50 currently pending
Career history
522
Total Applications
across all art units

Statute-Specific Performance

§101
4.5%
-35.5% vs TC avg
§103
45.5%
+5.5% vs TC avg
§102
11.2%
-28.8% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 472 resolved cases

Office Action

§103 §DP
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Status of the Claims Claims 1-20 are currently pending. Election/Restrictions Applicant’s election without traverse of Group II, Claims 12-17, and of species a nitrogen source, in the reply filed on 1/7/2026 is acknowledged. Claims 1-11 and 18-20 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to nonelected inventions and species, there being no allowable generic or linking claims. Claims 12-17 are being examined in this application, insofar as they read on the elected species of a nitrogen source. Claim Objections Claim 15 is objected to because of the following informalities: “metabolization source comprises source comprises”. Appropriate correction is required. Claim Rejections - 35 USC § 103 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 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. 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 of this title, 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 12-17 are rejected under 35 U.S.C. 103 as being unpatentable over Macur et al (US 2020/0268031 A1; 8/27/2020.) in view of Del Cardayre et al (US 2019/0032097 A1; 1/31/2019.). The instant claims recite a nutrient production system comprising an inorganic carrier material, an abiotic nutrient mixture, and a metabolization source, wherein the abiotic nutrient mixture comprises water and at least one non-biomass carbon source. Macur teaches a bioreactor comprising at least one membrane, a filamentous fungus inoculum (para 0054), a carbon source, a nitrogen source (para 0189), and water (an abiotic nutrient mixture) (para 0291), wherein the at least one membrane comprises a synthetic polymer (an inorganic carrier material) (para 0061), the filamentous fungus belong to an order Agaricales (para 0068) includes Pleurotus ostreatus (a metabolization source, a saprophytic organism, mushroom) (para 0070), and the bioreactor produces a biomat that serves as a food source such as a protein source (a nutrient production system) (para 0296). Macur does not teach the abiotic nutrient mixture comprises at least one non-biomass carbon source (claim 12). However, Macur does teach the bioreactor comprises a carbon source. Del Cardayre teaches that a carbon source is a substrate or compound suitable to be used as a source of carbon for prokaryotic or simple eukaryotic cell growth including Pleurotus (para 0012), wherein the carbon source includes at least one biomass carbon source as well as at least one non-biomass carbon source (para 0067). Thus, before the effective filing date of the claimed invention, it would have been obvious to one of ordinary skill in the art to incorporate at least one non-biomass carbon source for culturing a fungus including Pleurotus, since Macur and Del Cardayre both disclose culturing a fungus including Pleurotus using a carbon source, and Del Cardayre specifically discloses that the carbon source includes at least one non-biomass carbon source. Moreover, before the effective filing date of the claimed invention, one of ordinary skill in the art would have been motivated by the cited reference and routine practice to incorporate at least one non-biomass carbon source with a reasonable expectation of success. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the claims at issue are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO internet Web site contains terminal disclaimer forms which may be used. Please visit http://www.uspto.gov/forms/. The filing date of the application will determine what form should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to http://www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 12-17 are provisionally rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 1-3, 9-10, 12, and 14-17 of co-pending Application No. 18/933,740 (referred to as the ‘740 application). Claims 1-3, 9-10, 12, and 14-17 of the ‘740 application recite a nutrient production system comprising mineral wool, zeolite, mesoporous metal oxides, fiberglass, vermiculite, a synthetic polymer (an inorganic carrier material), an abiotic nutrient mixture comprises water, paraffin, mineral oil (at least one non-biomass carbon source), and Pleurotus ostreatus (a metabolization source, a saprophytic organism, mushroom). The abiotic nutrient mixture further comprises a nitrogen source. This is a provisional obviousness-type double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion No claims are allowed. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to LYNN Y FAN whose telephone number is (571)270-3541. The examiner can normally be reached on M-F 7am-4pm. 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 on (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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Lynn Y Fan/ Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

May 18, 2023
Application Filed
Feb 12, 2026
Non-Final Rejection — §103, §DP (current)

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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
47%
Grant Probability
96%
With Interview (+48.7%)
3y 9m
Median Time to Grant
Low
PTA Risk
Based on 472 resolved cases by this examiner. Grant probability derived from career allow rate.

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