Prosecution Insights
Last updated: April 19, 2026
Application No. 18/281,000

SYSTEMS AND METHODS OF PRODUCING FAT TISSUE FOR CELL-BASED MEAT PRODUCTS

Non-Final OA §102§112
Filed
Sep 08, 2023
Examiner
TRAN, LIEN THUY
Art Unit
1793
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Terasaki Institute For Biomedical Innovation
OA Round
1 (Non-Final)
28%
Grant Probability
At Risk
1-2
OA Rounds
4y 3m
To Grant
55%
With Interview

Examiner Intelligence

Grants only 28% of cases
28%
Career Allow Rate
250 granted / 878 resolved
-36.5% vs TC avg
Strong +26% interview lift
Without
With
+26.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 3m
Avg Prosecution
83 currently pending
Career history
961
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
60.7%
+20.7% vs TC avg
§102
6.1%
-33.9% vs TC avg
§112
24.1%
-15.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 878 resolved cases

Office Action

§102 §112
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 with traverse of Group I, claims 1, 93-97 in the reply filed on 9/24/25 is acknowledged. The traversal is on the ground(s) that applicant believes a single search and examination covering all claims would not place undue burden on the examiner. This is not found persuasive because the examination of all claims would require different searches for each of the invention and that would place undue burden. The requirement is still deemed proper and is therefore made FINAL. Claims 98-111 are withdrawn from consideration as being directed to non-elected inventions. 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 93-97 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. In claim 93, the recitation of “ the fat” is vague and indefinite because it’s unclear what fat the claim is referring to. While claim 1 recites a fat emulsion, there is no recitation of any fat ingredient in the fat emulsion. ( for prior art application, it’s interpreted as fat in the emulsion.) Claims 94 and 95 have the same problem as claim 93. In claim 96, the limitation “ microcarriers” is vague and indefinite because it’s not clear what functional ingredient is denoted by microcarriers. It’s unclear what ingredient is qualified as microcarriers. In claim 97, the limitation “ at least some of the microcarriers” is vague and indefinite because it’s unclear what “ at least some” indicates because claim 96 does not recite any category of microcarriers. 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) 1, 93-97 is/are rejected under 35 U.S.C. 102 (a1) as being anticipated by Cox ( 5219599). For claim 1, Cox discloses an artificial adipose which is considered the same as the claimed fat replica. The artificial adipose comprise fat emulsion and a hydrogel comprising crosslinked non-human blood plasma. ( see col. 4 lines 11-25, col. 5 lines 15-33, col. 6) For claims 93-95, Cox discloses the fat emulsion comprises fat such as vegetable oil. Saturated fatty acids can also be added. Cox discloses the oil can include high oleic derivative. Oleic acid is a monounsaturated fatty acid. Thus, the fat includes unsaturated fat. ( see col. 6 lines 15-36) For claim 96, Cox discloses the animal blood plasma contains fibrinogen and albumin which is considered as microcarrier because the claim does not have any parameter on carrier. Any ingredient in the emulsion is considered as microcarrier. ( see col. 5 lines 26-40) For claim 97, Cox discloses the plasma containing fibrinogen which is a precursor to fibrin. Cox discloses the fibrinogen in the plasma provides additional structural advantages when coagulated or set with the alginate and provides adequate body, toughness and structured interstices for the lipid. Cox also discloses prothrombin present in the complex is sufficient to produce strong cross-linking. When coagulated, fibrinogen converts to fibrin. Thus, fibrin is inherently present in the artificial adipose. ( see col. 11 line 35 through col. 12 line 6.) Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LIEN THUY TRAN whose telephone number is (571)272-1408. The examiner can normally be reached Monday-Thursday. 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, Emily Le can be reached at 571-272-0903. 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. October 16, 2025 /LIEN T TRAN/Primary Examiner, Art Unit 1793
Read full office action

Prosecution Timeline

Sep 08, 2023
Application Filed
Sep 08, 2023
Response after Non-Final Action
Dec 08, 2023
Response after Non-Final Action
Feb 09, 2024
Response after Non-Final Action
Oct 16, 2025
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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LEAVENING AGENTS
2y 5m to grant Granted Mar 10, 2026
Patent 12568985
MILKFAT OR BUTTERFAT FORMULATIONS
2y 5m to grant Granted Mar 10, 2026
Patent 12564205
A Process for preparing a heat-treated vegetable and/or meat matter.
2y 5m to grant Granted Mar 03, 2026
Patent 12564199
FOOD PRODUCTS WITH SHELLS THAT ARE DISSOLVED OR MELTED TO RELEASE INGREDIENTS AND FORM HEATED BEVERAGES
2y 5m to grant Granted Mar 03, 2026
Patent 12557834
EDIBLE FILMS AND COATINGS EMPLOYING WATER SOLUBLE CORN PROLAMIN AND OTHER FUNCTIONAL INGREDIENTS
2y 5m to grant Granted Feb 24, 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
28%
Grant Probability
55%
With Interview (+26.3%)
4y 3m
Median Time to Grant
Low
PTA Risk
Based on 878 resolved cases by this examiner. Grant probability derived from career allow rate.

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