Prosecution Insights
Last updated: July 17, 2026
Application No. 18/840,008

METHOD FOR CARRYING OUT THE COMBINED OPERATION OF A BIOETHANOL PRODUCTION UNIT AND A BIOGAS UNIT

Non-Final OA §102§112
Filed
Aug 20, 2024
Priority
Feb 21, 2022 — provisional 63/312,383 +1 more
Examiner
GORDON, MELENIE LEE
Art Unit
Tech Center
Assignee
Novozymes A/S
OA Round
1 (Non-Final)
23%
Grant Probability
At Risk
1-2
OA Rounds
1y 2m
Est. Remaining
69%
With Interview

Examiner Intelligence

Grants only 23% of cases
23%
Career Allowance Rate
49 granted / 214 resolved
-37.1% vs TC avg
Strong +46% interview lift
Without
With
+46.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
39 currently pending
Career history
255
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
72.7%
+32.7% vs TC avg
§102
10.9%
-29.1% vs TC avg
§112
8.9%
-31.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 214 resolved cases

Office Action

§102 §112
DETAILED ACTION Applicant’s Preliminary Amendment, submitted 8/20/2024, is acknowledged. Claims 1-18 and 28 are currently amended. Claims 19-27 are canceled. Claims 29-30 are newly added. Claims 1-18 and 28-30 are pending in the instant application. 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 . Priority The instant application is a U.S. National Phase of PCT/US2023/062954, filed 2/21/2023, and claims Domestic Benefit to U.S. Provisional Application No. 63/312,383, filed 2/21/2022. Information Disclosure Statement The information disclosure statement (IDS) submitted on 8/20/2024 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Objections Claims 1, 14, and 30 are objected to because of the following informalities: Claim 1 redundantly recites “x) added to the biogas unit” which is a duplicate of the recitation “i) added to the biogas unit” and should be deleted. Claim 14 ungrammatically recites “is added” but should instead recite “are added” in the last line. Claim 30 misspells “silage” as “sillage” in the 2nd line. Appropriate correction is required. Claim Rejections - 35 USC § 112 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 1-18 and 28-30 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 1 recites the limitation "the corn meal from step 1a)" in element iv). There is insufficient antecedent basis for this limitation in the claim. Step 1a) broadly recites a milled grain but does not recite a corn meal. It is not clear if “the corn meal” is intended to refer to the milled grain set forth in step 1a) or to a separate limitation. Therefore, the metes and bounds of claim 1 cannot be determined, and claim 1 is indefinite. Claims 2-18 and 28-30 are also rejected for being dependent on a rejected base claim and failing to remedy the issue set forth above. Regarding claim 28, the phrase "(e.g., ethanol yield)" renders the claim indefinite because it is unclear whether the limitation following the phrase is part of the claimed invention. See MPEP § 2173.05(d). It is not clear if ethanol yield is a required claim limitation because it follows exemplary language and is recited within parentheses. Thus, the metes and bounds of claim 28 are unclear, and claim 28 is indefinite. Claim Rejections - 35 USC § 102 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. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-18 and 28-30 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Bonk et al. (US2022/0033960; published Feb. 3, 2022; of record in IDS filed 8/20/2024). Regarding claim 1, Bonk teaches a method for carrying out the combined operation of a bioethanol production unit and a biogas unit, comprising: dry milling corn to reduce the particle size to a corn meal followed by a step of mashing with whole stillage, thin stillage, and/or outflow from the biogas unit (see Abstract, paragraphs [0024]-[0032], [0039]-[0052], [0060]-[0061], [0070]-[0074], [0077], [0081], Figs. 1-2, Table 2, and Claims 1-16). The mash obtained is then fed to a cooking stage with mash temperatures below the gelatinization temperature of the starch in the corn meal, followed by an ethanol-forming fermentation step and then feeding the fermented mash to a distillation step (see Abstract, paragraphs [0021], [0026], [0031], [0049]-[0050], [0071]-[0073], and Claims 1, 5 and 16). Bonk further teaches feeding the whole stillage from the cooking, fermenting, and distilling step back to the mashing step and/or to the biogas unit and/or to a solid-liquid separation step to generate thin stillage and wet cake (see Abstract, paragraphs [0027], [0051]-[0054], [0073]-[0078], [0083], Figs. 1-2, and Claims 1-4, 15, and 16). Bonk further teaches wherein the thin stillage is fed to the mashing step in 1a) and/or to the biogas unit and/or used to make corn oil and residual materials resulting from purification of the corn oil (see Abstract, paragraphs, [0036], [0044], [0052]-[0054], [0061], [0074], [0080]-[0082], Figs. 1-2, and Claims 1, 4, 15, and 16). Bonk further teaches wherein the residual materials resulting from purification of the corn oil are fed to the biogas unit (see Abstract, paragraphs [0032], [0051], [0053]-[0054], [0062], [0082]-[0083], and Figs. 1-2). Bonk further teaches wherein the thin stillage is used to produce a protein product with a raw protein content of more than 44 percent and residual materials resulting from purification of the protein product (see Abstract, paragraphs [0053] and [0082], and Figs. 1-2). Bonk further teaches wherein the residual materials resulting from purification of the protein product are fed to the biogas unit (see Abstract, paragraphs [0053]-[0054], [0080]-[0083], and Figs. 1-2). Bonk further teaches wherein the wet cake is fed to the mashing in step 1a) and/or to the biogas unit (see Abstract, paragraphs [0036], [0052], [0054], [0062], [0074]-[0075], [0080]-[0083], and Figs. 1-2). Bonk further teaches cellulases and cellulase-forming microorganisms such as yeasts are added to the biogas unit, to the mashing step via the outflow from the biogas unit with whole stillage, added to the whole stillage from 1b) that is fed to the biogas unit, added to the thin stillage that is fed to the mashing step, added to the residual materials resulting from purification of the corn oil that are fed to the biogas unit, added to the residual materials resulting from purification of the protein product that are fed to the biogas unit, added to the wet cake that is fed to the mashing step, added to the wet cake that is fed to the biogas unit, and/or added to the biomass added to any of the aforementioned steps, reading on wherein a yield enhancing composition comprising at least two types of enzyme and at least two microorganism strains are added to elements i)-xi) as claimed (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 2, Bonk teaches wherein the whole stillage from step 1b) is fed to a solid-liquid separation step to generate thin stillage and wet cake (see Abstract, paragraphs [0027], [0051]-[0054], [0073]-[0078], [0083], Figs. 1-2, and Claims 1-4, 15, and 16). Regarding claim 3, Bonk teaches wherein the thin stillage is fed to the mashing step in 1a) (see Abstract, paragraphs, [0036], [0044], [0052]-[0054], [0061], [0074], [0080]-[0082], Figs. 1-2, and Claims 1, 4, 15, and 16). Regarding claim 4, Bonk teaches wherein cellulases and cellulase-forming microorganisms such as yeasts are added to the thin stillage that is fed to the mashing step in 1a), reading on at least two enzymes and at least two microorganisms are added to the thin stillage that is fed to the mashing step in 1a) (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 5, Bonk teaches wherein the thin stillage is used to make corn oil and residual materials resulting from purification of the corn oil (see Abstract, paragraphs [0032], [0051], [0053]-[0054], [0062], [0082]-[0083], and Figs. 1-2). Regarding claim 6, Bonk teaches wherein the residual materials resulting from purification of the corn oil are fed to the biogas unit (see Abstract, paragraphs [0032], [0051], [0053]-[0054], [0062], [0082]-[0083], and Figs. 1-2). Regarding claim 7, Bonk teaches wherein cellulases and cellulase-forming microorganisms such as yeasts are added to the residual materials resulting from purification of the corn oil that are fed to the biogas unit, reading on at least two enzymes and at least two microorganisms are added to the residual materials resulting from purification of the corn oil that are fed to the biogas unit (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 8, Bonk teaches wherein the thin stillage is used to produce a protein product with a raw protein content of more than 44 percent and residual materials resulting from purification of the protein product (see Abstract, paragraphs [0053] and [0082], and Figs. 1-2). Regarding claim 9, Bonk teaches wherein the residual materials resulting from purification of the protein product art fed to the biogas unit (see Abstract, paragraphs [0053] and [0082], and Figs. 1-2). Regarding claim 10, Bonk teaches wherein cellulases and cellulase-forming microorganisms such as yeasts are added to the residual materials resulting from purification of the protein product that are fed to the biogas unit, reading on at least two enzymes and at least two microorganisms are added to the residual materials resulting from purification of the protein product that are fed to the biogas unit (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 11, Bonk teaches wherein the wet cake is fed to the mashing in step 1a) (see Abstract, paragraphs [0036], [0052], [0054], [0062], [0074]-[0075], [0080]-[0083], and Figs. 1-2). Regarding claim 12, Bonk teaches wherein cellulases and cellulase-forming microorganisms such as yeasts are added to the wet cake that is fed to the mashing step in 1a), reading on at least two enzymes and at least two microorganisms are added to the wet cake that is fed to the mashing step in 1a) (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 13, Bonk teaches wherein the wet cake is fed to the biogas unit (see Abstract, paragraphs [0036], [0052], [0054], [0062], [0074]-[0075], [0080]-[0083], and Figs. 1-2). Regarding claim 14, Bonk teaches wherein cellulases and cellulase-forming microorganisms such as yeasts are added to the wet cake that is fed to the biogas unit, reading on at least two enzymes and at least two microorganisms are added to the wet cake that is fed to the biogas unit (see Abstract, paragraphs [0045]-[0046], [0062], [0080]-[0086], Figs. 1-2, and Claim 16). Regarding claim 15, Bonk teaches wherein the milled grain comprises corn meal (see Abstract, paragraphs [0024]-[0026], [0031], [0039], [0041]-[0052], [0061], [0064], [0068]-[0079], Figs. 1-2, and Claims 1-16). Regarding claim 16, Bonk teaches wherein a biomass other than the milled grain is fed to the biogas unit (see Abstract, paragraph [0062], Table 1, and Figs. 1-2). Regarding claim 17, Bonk teaches wherein the biomass comprises lignocellulose-rich biomasses, reading on lignocellulosic material (see paragraph [0062]). Regarding claim 18, Bonk teaches cellulases and glucoamylases, reading on a cellulase and amylase (see paragraphs [0045]-[0046] and [0072]). Regarding claim 28, Bonk teaches the addition of cellulases and cellulase-forming microorganisms increases ethanol yield, reading on increasing a fermentation product yield (see paragraphs [0045]-[0046]). Regarding claim 29, Bonk teaches lignocellulose-rich biomasses such as straw, wood, grasses, bagasse, or sawdust can be fed to the biogas unit as a substrate in addition to stillage, the wet cake, or the residual substances from the ethanol unit to provide additional nutrients beneficial to the growth of microorganisms in the biogas unit, reading on mixing the thin stillage with an additional material obtained from a farm, industrial plant, or natural plant origin to form a mixture, adding the yield enhancing composition to the mixture to form a combined mixture, and feeding the combined mixture to the biogas unit (see paragraph [0062]). Regarding claim 30, Bonk teaches the additional material is grasses and straw, reading on grass clippings and straw pellets (see paragraph [0062]). Thus, Bonk anticipates claims 1-18 and 28-30 of the instant invention. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOHN PAUL SELWANES whose telephone number is (571)272-9346. The examiner can normally be reached Mon-Fri 7:30-5:00. 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. /J.P.S./Examiner, Art Unit 1651 /MELENIE L GORDON/Supervisory Patent Examiner, Art Unit 1651
Read full office action

Prosecution Timeline

Aug 20, 2024
Application Filed
Jun 17, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 8829055
BIOFILM FORMATION INHIBITOR COMPOSITION
5y 9m to grant Granted Sep 09, 2014
Patent 8304000
PROCESS FOR PREPARING WATER EXTRACT OF CINNAMON
1y 1m to grant Granted Nov 06, 2012
Patent 8287926
COMBINATIONS OF VASOACTIVE AGENTS AND THEIR USE IN THE TREATMENT OF SEXUAL DYSFUNCTIONS
1y 0m to grant Granted Oct 16, 2012
Patent 8257757
RODENT CONTROL COMPOSITION
2y 2m to grant Granted Sep 04, 2012
Patent 8216615
PAWPAW AND/OR PEACH DERIVED COMPOSITION
5y 4m to grant Granted Jul 10, 2012
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
23%
Grant Probability
69%
With Interview (+46.1%)
3y 1m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 214 resolved cases by this examiner. Grant probability derived from career allowance 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