Prosecution Insights
Last updated: May 29, 2026
Application No. 18/264,315

METHOD FOR PROMOTING SOLIDIFICATION OF OIL AND FAT

Non-Final OA §103§112
Filed
Aug 04, 2023
Priority
Mar 23, 2021 — JP 2021-048754 +1 more
Examiner
ZILBERING, ASSAF
Art Unit
1792
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Fuji Oil Holdings Inc.
OA Round
5 (Non-Final)
34%
Grant Probability
At Risk
5-6
OA Rounds
1y 4m
Est. Remaining
61%
With Interview

Examiner Intelligence

Grants only 34% of cases
34%
Career Allowance Rate
211 granted / 627 resolved
-31.3% vs TC avg
Strong +27% interview lift
Without
With
+27.0%
Interview Lift
resolved cases with interview
Typical timeline
4y 2m
Avg Prosecution
44 currently pending
Career history
706
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
93.9%
+53.9% vs TC avg
§102
3.1%
-36.9% vs TC avg
§112
1.9%
-38.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 627 resolved cases

Office Action

§103 §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 . DETAILED ACTION Status of Claims Note: The amendment of November 5th 2025 has been considered. Claims 3-5 are cancelled. Claims 1, 2 and 6-11 are pending in the current application. Claims 8 and 9 are withdrawn from consideration. Claims 1, 2, 6, 7, 10 and 11 are examined in the current application. Any rejections not recited below have been withdrawn. 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. Claims 1, 2, 6, 7, 10 and 11 are rejected under 35 U.S.C. 112(b), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, regards as the invention. Regarding claim 1: The phrase “average particle diameter” renders the claim indefinite, because it is unclear what the claimed average particle diameter means. Given the fact the standard deviation of the average particle diameter is not recited in the claims, nor anywhere else in the specification, the claimed average particle diameter encompasses any particle diameter possible. Therefore, one of ordinary skills in the art would read it with more than one reasonable interpretation, and thus such skilled artisan would not be reasonably apprised of its meaning. Applicant is urged to correct and/or clarify the metes and bounds of the phrase and the claim as recited without introducing new matter. Regarding claims 2, 6, 7, 10 and 11: In view of the fact that dependent claims 2, 6, 7, 10 and 11 depend on independent claim 1, and since independent claim 1 is rejected under 35 U.S.C. 112(b) as being indefinite, claims 2, 6, 7, 10 and 11 are rejected as being indefinite for depending on an indefinite claim. Claim Rejections - 35 USC § 103 The text of those sections of Title 35 of the U.S. Code not included in this action can be found in a prior Office action. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1, 2, 6, 7, 10 and 11 rejected under 35 U.S.C. 103 as being unpatentable over Withiam et al. (USPatPub. 2007/0154602 A1). Regarding claims 1, 2, 7, 10 and 11: Withiam discloses a method for prolonging the shelf life of cooking oil and removal of free fatty acids from cooking oil (i.e., oils comprising saturated and unsaturated fatty acids with 12 to 24 carbons and less than 2% free fatty acids) by mixing calcium silicate calcium based aluminum silicate (i.e., amorphous silica) by adding the amorphous silica to the oil and heat up the oil to about 70°C to about 90°C, wherein the particle size of the amorphous silica is between 425µm to 850µm (see Withiam abstract; paragraphs [0001], [0004], [0011]-[0013] and [0034]-[0037]; Examples). Since the temperature in claim 11 overlap the temperature in Withiam, a prima facie case of obviousness exists. As set forth in MPEP 2144.05, in the case where the claimed range “overlap or lie inside ranges disclosed by the prior art”, a prima facie case of obviousness exists, In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). As to the particle size recited in claim 1: Withiam discloses the particle size of the amorphous silica is between 425µm to 850µm (see Withiam paragraph [0012]; Examples). Given the fact it is unclear what the claimed average particle size of the amorphous silica means (see 35 USC §112(b) rejection, above), the particle size in Withiam encompasses the language of claim 1 (see 35 USC §112(b) rejection, above). As to the intended use of accelerating the solidification of oil and fat recited in the claims: Withiam discloses a method for prolonging the shelf life of cooking oil and removal of free fatty acids from cooking oil, but fails to disclose the method accelerates the solidification of the oil. While Withiam is silent regarding the intended uses recited in the preambles of claims 1, 2, 6, 7, 10 and 11, the preamble statements do not provide the claimed methods with a manipulative difference between the positively recited method steps and those disclosed by Withiam and therefore the preambles of claims 1, 2, 6, 7, 10 and 11 reciting the intended use of accelerating the solidification of oil and fat, do not provide a patentable distinction over the disclosure in Withiam. Regarding claim 6: Withiam discloses reducing the free fatty acid content of the oil to less than 2% (see Withiam abstract; paragraphs [0001], [0004], [0011]-[0013] and [0034]-[0037]; Examples), where less than 1% of the amorphous silica is employed (see WIthiam paragraph [0015]), which overlaps the A/B ratio recited in claim 6. Accordingly, a prima facie case of obviousness exists (see MPEP §2144.05). Response to Arguments Applicant's arguments filed on November 5th 2025 have been fully considered but they are not persuasive. Applicant argues the prior art references fail to render the claimed invention obvious, because Withiam fails to disclose the intended use of accelerating the solidification of oil and fat recited in the claims. The examiner respectfully disagrees. As discussed above, Withiam is silent regarding the intended uses recited in the preambles of claims 1, 2, 6, 7, 10 and 11, the preamble statements do not provide the claimed methods with a manipulative difference between the positively recited method steps and those disclosed by Withiam and therefore the preambles of claims 1, 2, 6, 7, 10 and 11 reciting the intended use of accelerating the solidification of oil and fat, do not provide a patentable distinction over the prior art. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ASSAF ZILBERING whose telephone number is (571)270-3029. The examiner can normally be reached on M-F 8:30-5:00. 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, Erik Kashnikow can be reached on (571) 270-3475. 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. /ASSAF ZILBERING/Examiner, Art Unit 1792
Read full office action

Prosecution Timeline

Show 9 earlier events
Apr 24, 2025
Non-Final Rejection mailed — §103, §112
Jun 09, 2025
Interview Requested
Jun 25, 2025
Examiner Interview Summary
Jun 25, 2025
Applicant Interview (Telephonic)
Jun 30, 2025
Response Filed
Aug 06, 2025
Non-Final Rejection mailed — §103, §112
Nov 05, 2025
Response Filed
Dec 16, 2025
Non-Final Rejection mailed — §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12635704
METHOD FOR MANUFACTURING CHEESE-LIKE FERMENTED FOOD, AND CHEESE-LIKE FERMENTED FOOD
3y 8m to grant Granted May 26, 2026
Patent 12628844
FAT SPREAD PRODUCT, PROCESS FOR PREPARING THE SAME, AND ITS USE AS TABLE SPREAD OR IN BAKERY
5y 2m to grant Granted May 19, 2026
Patent 12628845
OIL AND FAT COMPOSITION FOR HEAT COOKING
4y 11m to grant Granted May 19, 2026
Patent 12616221
LIPID-MODIFIED STARCHES
4y 4m to grant Granted May 05, 2026
Patent 12616222
Method for Manufacturing Refined Edible Oil and/or Fat, Method for Improving Light Exposure Odor of Edible Oil and/or Fat, and Refined Edible Oil and/or Fat
4y 3m to grant Granted May 05, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
34%
Grant Probability
61%
With Interview (+27.0%)
4y 2m (~1y 4m remaining)
Median Time to Grant
High
PTA Risk
Based on 627 resolved cases by this examiner. Grant probability derived from career allowance rate.

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