Prosecution Insights
Last updated: October 02, 2026
Application No. 18/902,773

TRYPTAMINE PRODRUGS

Non-Final OA §112§DP
Filed
Sep 30, 2024
Priority
Jun 30, 2020 — provisional 63/045,901 +3 more
Examiner
SHIAO, REI TSANG
Art Unit
Tech Center
Assignee
Reunion Neuroscience Inc.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
46%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
1649 granted / 2066 resolved
+19.8% vs TC avg
Minimal -34% lift
Without
With
+-33.6%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
52 currently pending
Career history
2087
Total Applications
across all art units

Statute-Specific Performance

§101
1.9%
-38.1% vs TC avg
§103
29.3%
-10.7% vs TC avg
§102
8.8%
-31.2% vs TC avg
§112
29.7%
-10.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 2066 resolved cases

Office Action

§112 §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 . DETAILED ACTION Priority and Status of the Claims 1. This application is CON of 17679439 02/24/2022 ABN, which is a CON of 17364047 06/30/2021 PAT 11292765, which claims benefit of the provisional applications 63/109,095 with a filing date 11/03/2020, and 63/045,901 with a filing date 06/30/2020. 2. Claims 21-53 are pending in the application. Claim Rejections - 35 USC § 112 3. 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. Claim 46 is 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. Claim 46, line 1, recites the limitation “crystalline form” without X-ray diffraction pattern data, is ambiguous and indefinite. It is noted that a fully X-ray diffraction pattern data is the fingerprint characteristics of crystalline form compound. Incorporation of an X-ray diffraction pattern data into claim 46 would obviate the rejection. Double Patenting 4. The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the "right to exclude" granted by a patent and to prevent possible harassment by multiple assignees. See In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321 (c) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the conflicting application or patent is shown to be commonly owned with this application. See 37 CFR 1.130(b). Effective January 1, 1994, a registered attorney or agent of record may sign a terminal disclaimer. A terminal disclaimer signed by the assignee must fully comply with 37 CFR 3.73(b). Claims 21, 25, 27, 33, 42, 45 and 49 are rejected under the judicially created doctrine of obviousness-type double patenting as being unpatentable independently over claims 1-2, 15 and 21 of Bryson’s US11,292,765. Although the conflicting claims are not identical, they are not patentably distinct from each other and reasons are as follows. Applicants claim a compound/composition, wherein the compound is represented by Formulae (I), (II), (III), or (IV), or is a pharmaceutically acceptable salt or zwitterion thereof: PNG media_image1.png 596 896 media_image1.png Greyscale , and methods of use for treating diseases, see claims 21, 25, 27 and 33. A process of making compounds of formulae (I) and (III) is claimed in claim 42. Applicants claim a hydrochloride salt of the following formula: PNG media_image2.png 238 400 media_image2.png Greyscale , and methods of use for treating disease, see claims 45 and 49. Bryson’s‘765 claims a compound/composition of Formula (I) (II), (III) or (IV) or a pharmaceutically acceptable salt or zwitterion thereof: PNG media_image3.png 486 456 media_image3.png Greyscale PNG media_image4.png 480 500 media_image4.png Greyscale , see claim 1 in column 28. A specific compound of the formula , i.e., PNG media_image5.png 274 438 media_image5.png Greyscale is claimed in claim 2, see column 29. A processes of making compounds of formulae (I), (II), (IIII0 and (IV), and methods of use for treating disease is claims 15 and 21 in column 32. The difference between instant claims and Bryson’s ‘765 is that the instant claim is embraced within the scope of Bryson’s ‘765. One having ordinary skill in the art would find the claims 21, 25, 27, 33, 42, 45 and 49 prima facie obvious because one would be motivated to employ the compound/composition and methods of use of Bryson’s ‘765 to obtain instant invention. The motivation to make the claimed compound/composition and methods of use derived from the known compound/composition and methods of use of Bryson’s ‘765 would possess similar activity to that which is claimed in the reference. Claim Objections 5. Claims 22-24,26,28-32,34-41,43-44,47-48 and 50-53 are objected to as being dependent on rejected claims 21, 33 and 45. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REI TSANG SHIAO whose telephone number is (571)272-0707. The examiner can normally be reached on 8:30 am-5:00 pm. 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, Renee Claytor can be reached on 571-272-8394. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see https://ppair-my.uspto.gov/pair/PrivatePair. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /REI TSANG SHIAO/ Rei-tsang Shiao, Ph.D.Primary Examiner, Art Unit 1691 September 21, 2026
Read full office action

Prosecution Timeline

Sep 30, 2024
Application Filed
Sep 23, 2026
Non-Final Rejection mailed — §112, §DP (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

1-2
Expected OA Rounds
80%
Grant Probability
46%
With Interview (-33.6%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 2066 resolved cases by this examiner. Grant probability derived from career allowance rate.

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