Prosecution Insights
Last updated: April 19, 2026
Application No. 18/042,479

AN INTERESTERIFIED TRIGLYCERIDE COMPOSITION WITH A LOW AMOUNT OF DIGLYCERIDES

Final Rejection §102§103
Filed
Feb 22, 2023
Examiner
ZILBERING, ASSAF
Art Unit
1792
Tech Center
1700 — Chemical & Materials Engineering
Assignee
AAK AB (publ)
OA Round
2 (Final)
33%
Grant Probability
At Risk
3-4
OA Rounds
4y 9m
To Grant
60%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
206 granted / 619 resolved
-31.7% vs TC avg
Strong +27% interview lift
Without
With
+27.2%
Interview Lift
resolved cases with interview
Typical timeline
4y 9m
Avg Prosecution
81 currently pending
Career history
700
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
57.9%
+17.9% vs TC avg
§102
10.2%
-29.8% vs TC avg
§112
26.0%
-14.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 619 resolved cases

Office Action

§102 §103
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 February 27th, 2026 has been considered. Claims 1-17 are pending in the current application. Claims 13, 16 and 17 are withdrawn from consideration. Claims 1-12, 14 and 15 are examined in the current application. Any rejections not recited below have been withdrawn. Claim Rejections - 35 USC § 102 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. Claims 1, 3, 4, 11, 12, 14 and 15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sassen et al. (US 6,171,636). Regarding claim 1: Sassen discloses an interesterified glyceride fat composition comprising less than 5% diglycerides (see Sassen abstract; column 2, lines 45-65; column 4, lines 11-25). Regarding claim 3: Sassen discloses the fat is a vegetable interesterified triglyceride composition (see Sassen abstract; column 2, lines 45-65). Regarding claim 4: Sassen discloses the interesterified glyceride composition is enzymatically interestrified (see Sassen column 2, lines 66 to column 3, line 10; column 5, lines 31-44). Regarding claim 11: Sassen discloses the interestrified glyceride composition can be used for coating and/or enrobing (see Sassen column 5, lines 21-23). Regarding claim 12: Sassen discloses the interestrified glyceride composition can be added to edible products (see Sassen column 4, lines 48-53). Regarding claim 14: Sassen discloses the interesterified glyceride composition can be used in baking (see Sassen column 4, lines 48-53) Regarding claim 15: Sasssen discloses the interesterified vegetable oil glyceride can be used in edible products (see Sassen column 4, lines 48-53). 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 1-12, 14 and 15 rejected under 35 U.S.C. 103 as being unpatentable over Sassen et al. (US 6,171,636). Regarding claim 2: Sassen discloses an interesterified glyceride fat composition comprising less than 5% diglycerides (see Sassen abstract; column 2, lines 45-65; column 4, lines 11-25). Since the claimed diglyceride content lies inside the diglyceride content in Sassen, 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). Regarding claim 5: Sassen discloses the interesterified glyceride composition comprises less than 5% of C12:0-C16:0 (see Sassen column 3, lines 14-20), which encompasses the claimed C8:0-C14:0 content. Regarding claim 6: Sassen discloses the interesterified glyceride composition comprises less than 5% of C12:0-C16:0 (see Sassen column 3, lines 14-20), which encompasses the claimed C12:0 and C14:0 content. Regarding claim 7: Sassen discloses the interesterified glyceride composition comprises less than 5% of C12:0-C16:0 (see Sassen column 3, lines 14-20), which encompasses the claimed C14:0 content. Regarding claim 8: Sassen discloses the interesterified glyceride composition comprises less than 5% of C12:0-C16:0 (see Sassen column 3, lines 14-20), which encompasses the claimed C12:0 content. Regarding claim 9-10: Sassen discloses the interestrified glyceride composition comprises vegetable hard fat (e.g., shea stearin) and interesterified oil at contents that overlap the claimed contents (see Sassen column 2, lines 6-42). Accordingly, a prima facie case of obviousness exists (see MPEP §2144.05). Response to Arguments Applicant's arguments filed on February 27th, 2026 have been fully considered but they are not persuasive. Applicant argues the prior art referenes fail to anticipate, or render the claims obvious, because Sassen teaches that triglycerides that have been subjected to chemical modification treatments are not preferred. The examiner respectfully disagrees. In column 2, lines 45-65, Sassen discloses the fats of the invention comprise a mixture of chemically treated fats and “green” fats: “[a]fter harvesting the oil may be used without any treatment other than the usual oil refining treatments comprising degumming, bleaching and deodorisation. More often, however, in order to obtain an oil which satisfies the definition in this specification, the oils need at least one modification treatment comprising fractionation or interesterification or blending. For obtaining an optimum mix of triglycerides the fat of course may be blended with other fats which also have not been chemically modified and therefore qualify as ‘green’.” Which meets the claimed limitations. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. 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 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 at (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 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. /ASSAF ZILBERING/Examiner, Art Unit 1792 /ERIK KASHNIKOW/Supervisory Patent Examiner, Art Unit 1792
Read full office action

Prosecution Timeline

Feb 22, 2023
Application Filed
Aug 09, 2025
Non-Final Rejection — §102, §103
Feb 17, 2026
Interview Requested
Feb 24, 2026
Examiner Interview Summary
Feb 24, 2026
Applicant Interview (Telephonic)
Feb 27, 2026
Response Filed
Mar 23, 2026
Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599143
EMULSIFIED OIL AND FAT COMPOSITION
2y 5m to grant Granted Apr 14, 2026
Patent 12588688
METHOD FOR PRODUCING AN INGREDIENT COMPRISING A COMBINATION OF AT LEAST THREE MILK PROTEINS AND USE OF THE INGREDIENT OBTAINED
2y 5m to grant Granted Mar 31, 2026
Patent 12582135
DHA Enriched Polyunsaturated Fatty Acid Compositions
2y 5m to grant Granted Mar 24, 2026
Patent 12577593
DHA ENRICHED POLYUNSATURATED FATTY ACID COMPOSITIONS
2y 5m to grant Granted Mar 17, 2026
Patent 12564198
METHOD FOR MANUFACTURING SN-2 PALMITIC TRIACYLGLYCEROLS
2y 5m to grant Granted Mar 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
33%
Grant Probability
60%
With Interview (+27.2%)
4y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 619 resolved cases by this examiner. Grant probability derived from career allow rate.

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