Prosecution Insights
Last updated: April 19, 2026
Application No. 17/822,863

SULFATED PILLARARENES, METHODS OF MAKING SAME, AND USES THEREOF

Non-Final OA §112
Filed
Aug 29, 2022
Examiner
COLEMAN, BRENDA LIBBY
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
UNIVERSITY OF MARYLAND, BALTIMORE
OA Round
3 (Non-Final)
75%
Grant Probability
Favorable
3-4
OA Rounds
2y 7m
To Grant
90%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
1201 granted / 1604 resolved
+14.9% vs TC avg
Strong +15% interview lift
Without
With
+15.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
46 currently pending
Career history
1650
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
5.8%
-34.2% vs TC avg
§102
16.9%
-23.1% vs TC avg
§112
52.3%
+12.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1604 resolved cases

Office Action

§112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Claims 1, 3, 5, 6, 8, 9, 11-18, 21, 25, 33, 34, 37 and 38 are pending in the application. This action is in response to applicants' amendment dated December 8, 2025. Claims 1 and 17 have been amended, claim 4 has been canceled and claims 37 and 38 are newly added. Response to Amendment Applicant's arguments filed December 8, 2025 have been fully considered with the following effect: The applicants’ amendments are sufficient to overcome the 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph rejection, labeled paragraph 3) in the last office action, which is hereby withdrawn. The applicant's amendments and arguments are sufficient to overcome the 35 U.S.C. 102(a)(1), anticipation rejection, labeled paragraph 6) in the last office action, which is hereby withdrawn. In view of the amendment dated December 8, 2025, the following new grounds of rejection apply: 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 8 and 38 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 pre-AIA the applicant regards as the invention. The following reasons apply: Claim 8 is vague and indefinite in that it is not known what is meant by “15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, or 32” where there is only up to 14 possible R groups. Claim 38 recites the limitation " PNG media_image1.png 41 82 media_image1.png Greyscale " in the structure which contains 2 phenylene rings that are unsubstituted. There is insufficient antecedent basis for this limitation in the claim. Allowable Subject Matter Claims 1, 3, 5, 6, 9, 11-18, 21, 25, 33, 34 and 37 are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRENDA L COLEMAN whose telephone number is (571)272-0665. The examiner can normally be reached Mon-Fri 10-6 (flex). 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, Jeffrey H. Murray can be reached at 571-272-9023. 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. /BRENDA L COLEMAN/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Aug 29, 2022
Application Filed
Dec 20, 2022
Response after Non-Final Action
Feb 04, 2025
Response after Non-Final Action
May 06, 2025
Non-Final Rejection — §112
Aug 05, 2025
Response Filed
Sep 09, 2025
Final Rejection — §112
Nov 11, 2025
Response after Non-Final Action
Dec 08, 2025
Request for Continued Examination
Dec 11, 2025
Response after Non-Final Action
Jan 26, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

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Patent 12590081
FUSED IMIDAZOLE DERIVATIVES, PREPARATION METHOD AND MEDICINAL USE THEREOF
2y 5m to grant Granted Mar 31, 2026
Patent 12575569
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Patent 12577262
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2y 5m to grant Granted Mar 17, 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
75%
Grant Probability
90%
With Interview (+15.4%)
2y 7m
Median Time to Grant
High
PTA Risk
Based on 1604 resolved cases by this examiner. Grant probability derived from career allow rate.

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