Prosecution Insights
Last updated: May 04, 2026
Application No. 17/904,379

METHOD FOR PRODUCING AN IODOFLUOROALKANE COMPOUND

Final Rejection §112
Filed
Aug 17, 2022
Priority
Feb 19, 2020 — FR 2001617 +5 more
Examiner
BAHTA, MEDHANIT W
Art Unit
1692
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Arkema France
OA Round
4 (Final)
80%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
618 granted / 768 resolved
+20.5% vs TC avg
Strong +29% interview lift
Without
With
+28.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
53 currently pending
Career history
821
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
35.9%
-4.1% vs TC avg
§102
18.1%
-21.9% vs TC avg
§112
30.3%
-9.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 768 resolved cases

Office Action

§112
DETAILED ACTION 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 08/04/2025 has been entered. Status of the Claims The amendment filed on 08/04//2025 has been entered. Claims 16 and 28 have been amended and claims 29-30 have been canceled. Thus, claims 16-26, 28 and 31-32 are currently pending and under examination. Withdrawn Rejections Claim 28 has been amended to comply with the written description and thus the 112(a) rejection of the claim has been amended. Furthermore, claim 16 has been amended by reciting PNG media_image1.png 182 649 media_image1.png Greyscale Even though Haszeldine teaches a method for producing 1,1-difluoro-2-iodoethane by the reaction of 1,1-difluoroethylene with hydrogen iodide in the absence of a catalyst and in liquid phase, the reference fails to teach or suggest the now recited species of the solvent S1. As such, the 103 rejection of the record has been withdrawn. Claim Objections Claim 28 is newly objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. 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 16-26 and 31-32 are newly 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 16 recites that the process step a) produces “a stream A comprising said iodofluoroalkane compound and unreacted hydrogen iodide” and step b) “separating said stream A into a first stream B1 comprising said iodofluoroalkane compound and a stream B2 comprising unreacted hydrogen iodide”. The claim is amended to further recite that step a) can be conducted in liquid phase and in the presence of species of solvent S1. However, the presence of solvent S1 renders the claim vague and indefinite as it is not clear how a reaction between fluoroolefin and HI in the presence of solvent S1 can only form two streams with just two components, i.e. stream B1 with iodofluoroalkane and stream B2 with unreacted HI but that there is no recitation how the solvent S1 is removed. The specification does not provide a detailed guidance on how this solvent S1 is removed other than separating stream B1 with iodofluoroalkane and stream B2 with unreacted HI. As such, a skilled artisan would not be reasonably apprised of the scope of the invention. Claims 17-26 and 31-32 are also rendered indefinite for their dependency on claim 16 as they can further limit the liquid phase option of reaction of step a). Allowable Subject Matter The subject matter of claims 16-26, 28 and 31-32 is free of prior art. The closest prior art reference is Haszeldine (Haszeldine, R. N. et al. “Addition of Free Radicals to Unsaturated Systems. Part XI. Free-radical and Electrophilic Attack; on Fluoro-olefins” J. Chem. Soc. Jan. 1, 1956, 11 pages doi 10.1039/JR9560000061 cited in IDS 08/17/2022). The teachings of Haszeldine has been set forth in the Office Action 05/13/2025, however as set discussed above, the reference fails to teach or suggest the species of solvent S1 as instantly amended claim 16. Accordingly, the claimed process for producing an iodofluoroalkane compound is deemed novel and unobvious. Conclusion Claims 16-26 and 31-32 are rejected and no claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEDHANIT W BAHTA whose telephone number is (571)270-7658. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Scarlett Goon can be reached at 571-270-5241. 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. /MEDHANIT W BAHTA/Primary Examiner, Art Unit 1692
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Prosecution Timeline

Show 8 earlier events
Dec 19, 2025
Final Rejection — §112
Mar 17, 2026
Interview Requested
Mar 23, 2026
Examiner Interview Summary
Mar 23, 2026
Applicant Interview (Telephonic)
Apr 08, 2026
Examiner Interview Summary
Apr 08, 2026
Applicant Interview (Telephonic)
Apr 10, 2026
Request for Continued Examination
Apr 13, 2026
Response after Non-Final Action

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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
80%
Grant Probability
99%
With Interview (+28.7%)
2y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 768 resolved cases by this examiner. Grant probability derived from career allowance rate.

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