Prosecution Insights
Last updated: April 19, 2026
Application No. 17/926,312

A Separation Method And Reactor System For A Glycol-Water Mixture

Final Rejection §DP
Filed
Nov 18, 2022
Examiner
PARSA, JAFAR F
Art Unit
1692
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ioniqa Technologies B V
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
2y 1m
To Grant
96%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
1073 granted / 1229 resolved
+27.3% vs TC avg
Moderate +9% lift
Without
With
+8.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
18 currently pending
Career history
1247
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
48.4%
+8.4% vs TC avg
§102
12.8%
-27.2% vs TC avg
§112
15.3%
-24.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1229 resolved cases

Office Action

§DP
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 . Claims 30-46 are pending. Claims 41-46 are withdrawn from consideration. Applicant’s arguments, see amendments/remarks, filed on February 27, 2026, with respect to claim rejections under 35 U.S.C §112(b) and the claim rejections under 35 U.S.C §103 as being unpatentable over U.S. Patent No. 3,367,847 ("Pierson") in view of U.S. Patent No. 6,444,095 ("Evans") have been fully considered and are persuasive. The aforesaid claim rejections have been withdrawn. The rejection of claims 30-40 stand rejected on the ground of nonstatutory double patenting as being unpatentable over Claims 1-13 of U.S. Patent No. 12,134,592 is maintained for reasons of record as set forth in the office action dated October 27, 2025. 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 JAFAR F PARSA whose telephone number is (571)272-0643. The examiner can normally be reached M-F 10:00 AM-6:30PM. 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. /JAFAR F PARSA/Primary Examiner, Art Unit 1692
Read full office action

Prosecution Timeline

Nov 18, 2022
Application Filed
Oct 23, 2025
Non-Final Rejection — §DP
Feb 27, 2026
Response Filed
Mar 21, 2026
Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12577188
RECYCLE CONTENT OXO GLYCOLS
2y 5m to grant Granted Mar 17, 2026
Patent 12577181
METHOD FOR SHUTTING DOWN A FISCHER-TROPSCH REACTOR
2y 5m to grant Granted Mar 17, 2026
Patent 12570590
METHOD FOR MANUFACTURING 2-CHLORO-1,1-DIFLUOROETHANE (HCFC-142), 1,1,2-TRIFLUOROETHANE (HFC-143), AND (E)-1,2-DIFLUOROETHYLENE (HFO-1132(E)) AND/OR (Z)-1,2-DIFLUOROETHYLENE (HFO-1132(Z))
2y 5m to grant Granted Mar 10, 2026
Patent 12565463
Fischer-Tropsch Processes Producing Increased Amounts of Alcohols
2y 5m to grant Granted Mar 03, 2026
Patent 12544728
ELECTRICALLY HEATED REACTOR, A FURNACE COMPRISING SAID REACTOR AND A METHOD FOR GAS CONVERSIONS USING SAID REACTOR
2y 5m to grant Granted Feb 10, 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
87%
Grant Probability
96%
With Interview (+8.7%)
2y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 1229 resolved cases by this examiner. Grant probability derived from career allow rate.

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