Prosecution Insights
Last updated: July 17, 2026
Application No. 18/541,172

PRODRUGS OF DIMETHYLTRYPTAMINE AND DERIVATIVES THEREOF

Non-Final OA §102§DP
Filed
May 01, 2024
Priority
Dec 15, 2022 — provisional 63/387,679
Examiner
HEASLEY, MEGHAN CHRISTINE
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Atai Therapeutics, Inc.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
96 granted / 124 resolved
+17.4% vs TC avg
Strong +32% interview lift
Without
With
+32.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
61 currently pending
Career history
162
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
47.0%
+7.0% vs TC avg
§102
21.0%
-19.0% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 124 resolved cases

Office Action

§102 §DP
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 . Status of the Claims Claims 1-49 and 78-87 are pending. Claims 7, 9, 14, 26, 29-39, 41, 44-45, 47-49, 78-79, and 82-87 are withdrawn. Claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 are rejected. Information Disclosure Statement The Information Disclosure Statements (IDS’s) submitted on 5/29/2025, 7/17/2025, and 5/8/2026 were considered by the Examiner. Election/Restrictions Applicant’s election without traverse of Group I and the species: PNG media_image1.png 104 156 media_image1.png Greyscale in the reply filed on 5/8/2026 is acknowledged. Claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 embrace Applicant’s elected species and are therefore under examination. The elected species is not allowable and has been rejected below. Claims 7, 9, 14, 26, 29-39, 41, 44-45, 47-49, 78-79, and 82-87 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Claim Objections Claim 46 is objected to because of the following informalities: Line 1 at the beginning of the claim should read: “The compound of claim 1, selected from the group consisting of:”. At the end of the claim (p. 8), there should be an “and” between the last two compounds. Appropriate correction is required. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. (1 of 4) Claim(s) 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Perni et al. (US12065405). The applied reference has a common applicant and (some) inventors with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding instant claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46, Perni et al. disclose the following compound in column 37 (Table 4): PNG media_image2.png 157 305 media_image2.png Greyscale , which is Applicant’s elected species and embraced by a compound of instant formula (I-A): PNG media_image3.png 143 234 media_image3.png Greyscale , wherein A = C-VR16, V = absent, R16 = H; E = C-ZR5, Z = absent, R5 = H; B = C-YR4, Y = absent, R4 = H; R7 – R10 and R13-R14 = H; R1 and R2 = alkyl (methyl); R11= -O-; R12 = -OH; W = NR6, R6 = H; X = absent and R3 = H. Regarding instant claims 80-81, Perni et al. teaches the following at the bottom of column 37 (lines 61-64): PNG media_image4.png 77 334 media_image4.png Greyscale , wherein a skilled artisan would understand that a pharmaceutically acceptable carrier and excipient are interchangeable substances. (2 of 4) Claim(s) 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Perni et al. (US20230357146). The applied reference has a common applicant and (some) inventors with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding instant claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46, Perni et al. disclose the following compound on p. 20, Table 4: PNG media_image5.png 116 266 media_image5.png Greyscale , which is Applicant’s elected species and embraced by a compound of instant formula (I-A): PNG media_image3.png 143 234 media_image3.png Greyscale , wherein A = C-VR16, V = absent, R16 = H; E = C-ZR5, Z = absent, R5 = H; B = C-YR4, Y = absent, R4 = H; R7 – R10 and R13-R14 = H; R1 and R2 = alkyl (methyl); R11= -O-; R12 = -OH; W = NR6, R6 = H; X = absent and R3 = H. Regarding instant claims 80-81, Perni et al. teaches the following in para. [0283]: PNG media_image6.png 137 294 media_image6.png Greyscale , wherein a skilled artisan would understand that a pharmaceutically acceptable carrier and excipient are interchangeable substances. ( 3 of 4) Claim(s) 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Perni et al. (US11643391). The applied reference has a common applicant and (some) inventors with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding instant claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46, Perni et al. disclose the following compound in column 37 (Table 4): PNG media_image2.png 157 305 media_image2.png Greyscale , which is Applicant’s elected species and embraced by a compound of instant formula (I-A): PNG media_image3.png 143 234 media_image3.png Greyscale , wherein A = C-VR16, V = absent, R16 = H; E = C-ZR5, Z = absent, R5 = H; B = C-YR4, Y = absent, R4 = H; R7 – R10 and R13-R14 = H; R1 and R2 = alkyl (methyl); R11= -O-; R12 = -OH; W = NR6, R6 = H; X = absent and R3 = H. Regarding instant claims 80-81, Perni et al. teaches the following in column 38 (lines 4-8): PNG media_image4.png 77 334 media_image4.png Greyscale , wherein a skilled artisan would understand that a pharmaceutically acceptable carrier and excipient are interchangeable substances. ( 4 of 4) Claim(s) 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, 46, and 80-81 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Perni et al. (US20230066720). The applied reference has a common applicant and (some) inventors with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Regarding instant claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46, Perni et al. disclose the following compound on p. 20 (Table 4): PNG media_image2.png 157 305 media_image2.png Greyscale , which is Applicant’s elected species and embraced by a compound of instant formula (I-A): PNG media_image3.png 143 234 media_image3.png Greyscale , wherein A = C-VR16, V = absent, R16 = H; E = C-ZR5, Z = absent, R5 = H; B = C-YR4, Y = absent, R4 = H; R7 – R10 and R13-R14 = H; R1 and R2 = alkyl (methyl); R11= -O-; R12 = -OH; W = NR6, R6 = H; X = absent and R3 = H. Regarding instant claims 80-81, Perni et al. teaches the following in para. [0269]: PNG media_image7.png 93 307 media_image7.png Greyscale , wherein a skilled artisan would understand that a pharmaceutically acceptable carrier and excipient are interchangeable substances. Double Patenting 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. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); 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); 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) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-8 of U.S. Patent No. 11643391. Although the claims at issue are not identical, they are not patentably distinct from each other. Regarding instant claims 1-6, 8, 10-13, 15-25, 27-28, 40, 42-43, and 46, US11643391 discloses the following compound in claim 3: PNG media_image8.png 160 257 media_image8.png Greyscale , which is Applicant’s elected species and embraced by a compound of instant formula (I-A): PNG media_image3.png 143 234 media_image3.png Greyscale , wherein A = C-VR16, V = absent, R16 = H; E = C-ZR5, Z = absent, R5 = H; B = C-YR4, Y = absent, R4 = H; R7 – R10 and R13-R14 = H; R1 and R2 = alkyl (methyl); R11= -O-; R12 = -OH; W = NR6, R6 = H; X = absent and R3 = H. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEGHAN C HEASLEY whose telephone number is (571)270-0785. The examiner can normally be reached Monday - Friday 8:30-4:30 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, Amy Clark can be reached at 571-272-1310. 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. /MEGHAN C HEASLEY/Examiner, Art Unit 1626
Read full office action

Prosecution Timeline

May 01, 2024
Application Filed
Jun 17, 2026
Non-Final Rejection mailed — §102, §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
77%
Grant Probability
99%
With Interview (+32.2%)
3y 1m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 124 resolved cases by this examiner. Grant probability derived from career allowance rate.

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