Prosecution Insights
Last updated: April 19, 2026
Application No. 18/947,888

METHOD AND SYSTEM FOR PRODUCING A FUEL FROM BIOGAS

Non-Final OA §112
Filed
Nov 14, 2024
Examiner
ARNETT, NICOLAS ALLEN
Art Unit
3753
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Iogen Corporation
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allow Rate
841 granted / 1039 resolved
+10.9% vs TC avg
Strong +21% interview lift
Without
With
+20.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
29 currently pending
Career history
1068
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
35.9%
-4.1% vs TC avg
§102
27.5%
-12.5% vs TC avg
§112
25.6%
-14.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1039 resolved cases

Office Action

§112
DETAILED ACTION The preliminary amendment filed November 14, 2024 has been entered. Claims 22-42 remain pending. 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 . Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Currently, no claim limitation is being interpreted as invoking 35 U.S.C. 112(f). Claim Objections Claims 23 and 35-42 are objected to under 37 CFR 1.75 as being a substantial duplicate of claims 22, 24-29, and 31-32. When two claims in an application are duplicates or else are so close in content that they both cover the same thing, despite a slight difference in wording, it is proper after allowing one claim to object to the other as being a substantial duplicate of the allowed claim. See MPEP § 608.01(m). In this case, the only difference between claim 22 and claim 23 is a different percentage (75% or 50%) recited in an optional limitation. However, as an optional limitation is not required by the claim, claims 22 and 23 cover the same thing. Likewise, claims 35-42 cover the same thing as claims 24-29 and 31-32 Allowable Subject Matter Claims 22 and 24-34 are allowed. The following is an examiner’s statement of reasons for allowance: the prior art documents disclose various methods for “producing fuel from biogas comprising: (a) providing biogas from a plurality of biogas sources, the biogas from each biogas source produced in a process comprising:(i) collecting raw biogas from one of the biogas sources in the plurality, the raw biogas comprising methane and carbon dioxide; (iv) transporting the filled vessel to a centralized processing facility by vehicle; and (v) removing the raw biogas or the partially purified biogas from the vessel transported to the centralized processing facility; (b) producing fuel in a fuel production process, the fuel production processing comprising feeding the biogas provided in step (a) to a biogas upgrading system.” However, the prior art documents do not disclose “the biogas upgrading system configured to remove carbon dioxide from the biogas; (c) processing the carbon dioxide removed in (b) for transport by vehicle, pipeline, or a combination thereof, the processing comprising cooling, compressing, or a combination thereof; and (d) sequestering the carbon dioxide processed in (c), thereby reducing a carbon intensity of the fuel produced in the fuel production process, the sequestering comprising sequestering an amount of carbon dioxide sufficient to substantially offset greenhouse gas emissions attributed to compressing and transporting the raw biogas or partially purified biogas.” The examiner finds no evidence that one of ordinary skill in the art would modify the existing systems and methods to include these steps. Therefore, the cited documents do not disclose or render obvious the claimed invention. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure and claimed invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NICOLAS A ARNETT whose telephone number is (571)270-5062. The examiner can normally be reached M- F, 8AM - 3PM. 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, Kenneth Rinehart can be reached on 571-272-4881. 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. /NICOLAS A ARNETT/Primary Examiner, Art Unit 3753 December 15, 2025
Read full office action

Prosecution Timeline

Nov 14, 2024
Application Filed
Dec 15, 2025
Non-Final Rejection — §112
Apr 07, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12570517
APPARATUS AND METHOD FOR MONITORING FLUID OR MATERIAL TRANSFER INTO A RECEIVING TANK OR RECEPTACLE
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Patent 12566021
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2y 5m to grant Granted Mar 03, 2026
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Patent 12552657
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2y 5m to grant Granted Feb 17, 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
81%
Grant Probability
99%
With Interview (+20.9%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1039 resolved cases by this examiner. Grant probability derived from career allow rate.

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