Prosecution Insights
Last updated: July 17, 2026
Application No. 18/077,339

FLUORINE-CONTAINING ETHER COMPOUND AND METHOD OF MANUFACTURING THE SAME, COMPOUND AND METHOD OF MANUFACTURING THE SAME, FLUORINE-CONTAINING ETHER COMPOSITION, COATING LIQUID, AND ARTICLE AND METHOD OF MANUFACTURING THE SAME

Final Rejection §102§112
Filed
Dec 08, 2022
Priority
Jun 12, 2020 — JP 2020-102409 +1 more
Examiner
FOSS, DAVID ROGER
Art Unit
1764
Tech Center
1700 — Chemical & Materials Engineering
Assignee
AGC Inc.
OA Round
2 (Final)
72%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
84 granted / 116 resolved
+7.4% vs TC avg
Strong +39% interview lift
Without
With
+38.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
31 currently pending
Career history
153
Total Applications
across all art units

Statute-Specific Performance

§103
70.2%
+30.2% vs TC avg
§102
3.6%
-36.4% vs TC avg
§112
17.8%
-22.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 116 resolved cases

Office Action

§102 §112
DETAILED ACTION Summary Applicant’s amendment dated 20 April 2026 is acknowledged. Claims 1-14 are pending. Claims 6-7 and 12-14 are withdrawn from consideration. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. New grounds of rejection set forth below are necessitated by the amendment dated 20 April 2026. For this reason, this action is properly made final. 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 . Drawings The corrected drawings were received on 20 April 2026. These drawings are accepted. The objection to the drawings set forth in the previous office action is withdrawn. Claim Rejections - 35 USC § 112 Claims 1-4 and 8-11 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, on the second page, a limitation on the recited Q formulas “the side where A1, A2, or A3 is present connects to a polyfluoropolyether chain”. It is not clear whether “a polyfluoropolyether chain” is recited a new part of the recited formulas or if it is a part of the formula which has been previously recited. If the intent of this recitation is to show the orientation of the recited Q formulas within the greater Formula (A1) or Formula (A2), examiner recommends reciting that the side where A1, A2, or A3 is present connects to the polyfluoropolyether chains in those formulas, perhaps including -(CHF)m3-O-(CHF)m4-, -(CHF)m5-O-(CHF)m6-, or -(CHF)m10-O-(CHF)m11- as the groups that the A-groups are connected to. This would match the recitation of how the other side is connected to T1, T2, or T3. Claims 2-4 and 8-11 are also rejected because they depend upon, and therefore include, Claim 1. Claim Rejections - 35 USC § 102 Claim 5 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by OLAH (Angew. Chem. Int. Ed. Engl. 18 (1979)). Regarding Claim 5, OLAH teaches the preparation and characterization of formic anhydride (Figure): PNG media_image1.png 137 76 media_image1.png Greyscale This satisfies Formula (B2) where m7=m8=m9=0 which satisfies the recited requirements that m8 is an integer from 0 to 210 and m7 and m9 are each independently 0 or 1. Claim 5 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by SULBAEK ANDERSEN (J Phys Chem A (2004)). Regarding Claim 5, SULBAEK ANDERSEN teaches forming the diformate compound H(O)CO(CF2CF2O)nC(O)H were n is 1-3 (Abstract; p. 1967: right side, lines 5-6) and reports its infrared spectrum (Fig. 3C). This structure satisfies formula (B2) as recited by the claim where m7=m9=0, Rf2 is -CF2CF2- which is a fluoroalkylene group with a carbon number of 2, and m8 is 1-3. These structures are registered in CAS with numbers 681294-22-4 and 681294-24-6. Claim 5 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by MARCHIONNI (US-20110213182-A1). Regarding Claim 5, MARCHIONNI teaches an aldehyde having the structure ([0026]) PNG media_image2.png 120 274 media_image2.png Greyscale where Rf is a perfluoro(oxy)alkyl group ([0011]). This overlaps the recited structure for (B1) where R1=CH2, Rf1 is -CHFCF2- which is a fluoroalkylene group having two carbons and the Rf overlaps the perfluoroalkyl requirement recited by the claim. MARCHIONNI exemplifies the following aldehyde ([0056]): PNG media_image3.png 111 290 media_image3.png Greyscale which satisfies the formula (B1) where R1=CH2, Rf1 = -CHFCF2- and Rf is CF3CF2- which is a perfluoroalkyl group with two carbons. Allowable Subject Matter Claims 1-4 and 8-11 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The closest prior art, HOSHINO (WO-2019049753-A1), cited in the previous office action teaches fluorine-containing ether compounds which satisfy the polyfluoroether and adhesive group sections of Formula (A1), but HOSHINO teaches and exemplifies Q groups which contain fluoroalkyl sections which are now out of scope of Claim 1. The prior art does not teach fluorine-containing ether compounds with a -CHF-O- or -O-CHF- group at the location between the polyfluoroether and nonfluoro-hydrocarbon linking Q-sections of the chain as is now recited by both Formula (A1) and (A2) of Claim 1. Response to Arguments Applicant’s arguments with respect to Claim 5 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. The amendments to the drawings have overcome the issue where the drawings contained a reference label which was not mentioned in the specification. The objection to the drawing has been withdrawn. The amendment to Claim 11 changing the claim dependency has overcome the antecedency issue associated with “the composition”. Claim 11 now depends on Claim 8 which is directed to a composition. The rejection under 35 USC 112(b) has been withdrawn. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 DAVID R FOSS whose telephone number is (571)272-4821. The examiner can normally be reached Monday - Friday 8:00 - 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, ARRIE L REUTHER can be reached at (571)270-7026. 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. /D.R.F./Examiner, Art Unit 1764 /KREGG T BROOKS/Primary Examiner, Art Unit 1764
Read full office action

Prosecution Timeline

Dec 08, 2022
Application Filed
Jan 21, 2026
Non-Final Rejection mailed — §102, §112
Apr 20, 2026
Response Filed
Jun 22, 2026
Final Rejection mailed — §102, §112 (current)

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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
72%
Grant Probability
99%
With Interview (+38.9%)
3y 4m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 116 resolved cases by this examiner. Grant probability derived from career allowance rate.

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