Prosecution Insights
Last updated: October 02, 2026
Application No. 18/756,360

Nucleoside Prodrugs and Uses Related Thereto

Non-Final OA §112§DP
Filed
Jun 27, 2024
Priority
Aug 22, 2019 — provisional 62/890,452 +3 more
Examiner
STOCKTON, LAURA LYNNE
Art Unit
Tech Center
Assignee
Emory University
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
1025 granted / 1363 resolved
+15.2% vs TC avg
Strong +34% interview lift
Without
With
+33.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
41 currently pending
Career history
1385
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
22.7%
-17.3% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
35.4%
-4.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1363 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 Claims 1-20 are pending in the instant application. Election/Restrictions Applicant's election with traverse of Group I, PNG media_image1.png 238 622 media_image1.png Greyscale , and the species of the 1st compound listed on page 67 of the instant specification (reproduced below), PNG media_image2.png 166 570 media_image2.png Greyscale in the reply filed on July 27, 2026 is acknowledged. The restriction is hereby withdrawn. Therefore, the method of use invention of Group II has been rejoined. Information Disclosure Statement The Examiner has considered the Information Disclosure Statement filed on June 27, 2025. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Objections Claims 11, 12, 15 and 16 are objected to because of the following informalities: in claim 11, an “and” should be added before the last Z substituent for proper Markush language format; in claim 12, an “and” should be added before the last Z substituent for proper Markush language format; in claim 15, the phrase “in the form of tablet” should be changed to “in the form of a tablet”; and in claim 16, the phrase “treating viral infection” should be changed to “treating a viral infection”. Appropriate correction is required. 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 1-12 and 14-20 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 applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding claim 1, the phrase "(i.e., …)" under the definitions of variable W and variable Y renders the claim indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). Claims dependent on claim 1 which do not resolve the problems stated above are also found indefinite. 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 1-11 and 14-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-11, 13 and 16-23 of U.S. Patent No. 12,049,474. Although the claims at issue are not identical, they are not patentably distinct from each other because there is overlapping claimed subject matter in U.S. Patent No. 12,049,474 with the instant claimed invention. See wherein the Z variable can represent the substituent, PNG media_image3.png 82 116 media_image3.png Greyscale , in claim 1 of U.S. Patent No. 12,049,474 and in instant claim 1. Further, U.S. Patent No. 12,049,474 discloses compounds wherein the Z variable represents the substituent, PNG media_image3.png 82 116 media_image3.png Greyscale . See, for instance, the 2nd compound listed in columns 67-68 of U.S. Patent No. 12,049,474, PNG media_image4.png 212 648 media_image4.png Greyscale , which compound would anticipate the instant claimed invention. The instant application is a continuation of Application No. 17/637,365, which matured to U.S. Patent No. 12,049,474. Although a lack of unity was required during the prosecution of Application No. 17/637,365, the non-elected method of use invention was later rejoined. Thus, no 35 USC 121 shield exists here. See MPEP §804.01. Therefore, the claims in U.S. Patent No. 12,049,474 render obvious the instant claimed invention. Reminder to Applicant As a reminder, Applicant should specifically point out the support in the original disclosure {i.e., page number(s) and line number(s)} for any new claims or amended claims and for any amendments made to the disclosure. Making generic statements such as “all amendments are fully supported in the originally filed disclosure or the originally filed claims” without specifying page numbers and originally filed claim numbers are insufficient. See MPEP §714.02 and MPEP §2163.06(I). Allowable Subject Matter The elected species is allowable over the prior art of record. Claim 13 is 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. Telephone Inquiry Any inquiry concerning this communication or earlier communications from the examiner should be directed to: Laura L. Stockton (571) 272-0710. The examiner can normally be reached on Monday-Friday from 8:30 am to 6 pm, Eastern Standard Time. 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 acting supervisor, James Alstrum-Acevedo can be reached on 571/272-5548. 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. /LAURA L STOCKTON/ Primary Examiner, Art Unit 1626 Work Group 1620 Technology Center 1600 September 11, 2026 Book XXVII, page 118
Read full office action

Prosecution Timeline

Jun 27, 2024
Application Filed
Sep 15, 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
75%
Grant Probability
99%
With Interview (+33.7%)
2y 4m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1363 resolved cases by this examiner. Grant probability derived from career allowance rate.

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