Prosecution Insights
Last updated: July 17, 2026
Application No. 17/616,586

BROAD SPECTRUM ANTIVIRAL COMPOUNDS TARGETING THE SKI COMPLEX

Final Rejection §102
Filed
Dec 03, 2021
Priority
Jun 06, 2019 — provisional 62/858,071 +2 more
Examiner
CHENG, KAREN
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
University of Maryland, Baltimore
OA Round
4 (Final)
76%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
518 granted / 679 resolved
+16.3% vs TC avg
Strong +27% interview lift
Without
With
+27.4%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
59 currently pending
Career history
727
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
38.1%
-1.9% vs TC avg
§102
19.9%
-20.1% vs TC avg
§112
12.5%
-27.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 679 resolved cases

Office Action

§102
DETAILED ACTION Claims 1, 4-5 and 8-28 are currently pending in the instant application. 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 . Response to Amendment Applicant’s amendments and arguments in a response filed 10/08/2025 have been fully considered and entered into the application. It is noted that although Applicant has attempted to exclude the compound cited in the prior 102(a)(1) rejection, the prior art compound still reads on the instant claims as described below in the rejection. Specifically the cited compound corresponds to a compound of formula (I) wherein R1e is PNG media_image1.png 94 88 media_image1.png Greyscale , R1a, R1c and R1d are H and R1b is OMe. However, the amendments have overcome the 102(a)(1) rejection of claims 13, 15-16 and 18. Information Disclosure Statement Applicant's Information Disclosure Statement filed on 11/14/2025 has been considered. Please refer to Applicant's copies of the 1449 submitted herewith. Election/Restrictions In accordance with the MPEP, if upon examination of the elected species, no prior art is found that would anticipate or render obvious the instant invention based on the elected species and the claims drawn to the elected species are allowable, the search of the Markush-type claim will be extended (see MPEP 803.02). If prior art is then found that anticipates or renders obvious the non-elected species, the Markush-type claim will be rejected. It should be noted that the prior art search will not be extended unnecessarily to cover all non-elected species. Should Applicant overcome the rejection by amending the claim, the amended claim will be reexamined. Id. The prior art search will be extended to the extent necessary to determine patentability of the Markush-type claim. Id. In the event prior art is found during reexamination that renders obvious or anticipates the amended Markush-type claim, the claim will be rejected and the action made final. Id. Applicant's elected species appears allowable over the prior art of record. Therefore, the search of the Markush-type claim has been extended to the non-elected species of PNG media_image2.png 342 414 media_image2.png Greyscale as described in the following 102(a)(1) rejection. As prior art has been found which anticipates the above identified nonelected species, the Markush-type claims are rejected as follows and the subject matter of the claims drawn to nonelected species held withdrawn from consideration. Claims 1, 4-5, 8-10, 12-13 and 15-18 have been examined to the extent that they are readable on the elected embodiment and the above identified nonelected species. Since art was found on the nonelected species, subject matter not embraced by the elected embodiment or the above identified nonelected species is therefore withdrawn from further consideration. The remaining subject matter of claims 11, 14 and 19-28 that is not drawn to the above elected invention stand withdrawn under 37 CFR 1.142(b) as being non-elected subject matter. The remaining compounds which are not within the elected invention are independent and distinct from the elected invention as they differ in structure and composition. Therefore the compounds, which are withdrawn, have been restricted as the withdrawn subject matter is patentably distinct from the elected subject matter as it differs in structure and element and would require separate search considerations. In addition, a reference, which anticipates one group, would not render obvious the other. Thus, all claims containing compounds falling outside the search strategy of the elected compound and structure shown above are heretofore directed to non-elected subject matter and are withdrawn from consideration under 35 U.S.C. § 121 and 37 C.FR. § 1.142(b). A complete reply to the non-final rejection must include cancellation of non-elected claims include cancellation of non-elected claims or other appropriate action (37 CFR 1.144). See MPEP § 821.01. Applicant is reminded that upon the cancellation of claims to a non-elected invention, the inventorship must be amended in compliance with 37 CFR 1.48(b). If one or more of the currently named inventors is no longer an inventor of at least one claim remaining in the application. Any amendment of inventorship must be accompanied by a request under 37 CFR 1.48(b) and by the fee required under 37 CFR 1.17(i). Information Disclosure Statement Applicant's Information Disclosure Statement filed on 11/14/2025 has been considered. Please refer to Applicant's copies of the 1449 submitted herewith. Maintained and New Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1, 4-5, 8-10, 12 and 17 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS RN 1069591-19-0, entered into STN on 11/02/2008. CAS RN 1069591-19-0 corresponds to compound PNG media_image3.png 294 364 media_image3.png Greyscale , which anticipates the compound of formula (I) wherein A is PNG media_image4.png 78 108 media_image4.png Greyscale and R4 is methyl, R2 is OH, X is O, R1e is PNG media_image1.png 94 88 media_image1.png Greyscale , R1a, R1c and R1d are H, R1b is OMe. See MPEP 2128: ELECTRONIC PUBLICATIONS AS PRIOR ART Status as a "Printed Publication" An electronic publication, including an on-line database or Internet publication, is considered to be a “printed publication” within the meaning of 35 U.S.C. 102(a) and (b) provided the publication was accessible to persons concerned with the art to which the document relates. See In re Wyer, 655 F.2d 221, 227, 210 USPQ 790, 795 (CCPA 1981) Since this date represents the date that each compound entered the CAPlus database on STN, this represents the date that each compound was made accessible to the public. Claims 1, 4-5, 8-10, 12-13 and 15-18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS RN 1066899-55-5, entered into STN on 10/27/2008. CAS RN 11066899-55-5 corresponds to compound PNG media_image2.png 342 414 media_image2.png Greyscale , which anticipates the compound of formula (I) wherein A is PNG media_image4.png 78 108 media_image4.png Greyscale and R4 is methyl, R2 is OH, X is O, R1a is PNG media_image5.png 110 100 media_image5.png Greyscale , R1b, R1c and R1e are H, R1d is OMe, which is compound 2093-a of claim 18. See MPEP 2128: ELECTRONIC PUBLICATIONS AS PRIOR ART Status as a "Printed Publication" An electronic publication, including an on-line database or Internet publication, is considered to be a “printed publication” within the meaning of 35 U.S.C. 102(a) and (b) provided the publication was accessible to persons concerned with the art to which the document relates. See In re Wyer, 655 F.2d 221, 227, 210 USPQ 790, 795 (CCPA 1981) Since this date represents the date that each compound entered the CAPlus database on STN, this represents the date that each compound was made accessible to the public. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 KAREN CHENG whose telephone number is (703)756-4699. The examiner can normally be reached M-F, 9AM-6PM PST. 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, Adam Milligan can be reached at 571-270-7674. 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. /KAREN CHENG/Primary Examiner, Art Unit 1623 /ADAM C MILLIGAN/Supervisory Patent Examiner, Art Unit 1623
Read full office action

Prosecution Timeline

Show 3 earlier events
Jul 08, 2025
Final Rejection mailed — §102
Oct 08, 2025
Request for Continued Examination
Oct 09, 2025
Response after Non-Final Action
Nov 06, 2025
Non-Final Rejection (signed) — §102
Dec 15, 2025
Non-Final Rejection mailed — §102
Apr 15, 2026
Response Filed
Apr 27, 2026
Final Rejection (signed) — §102
Jun 18, 2026
Final Rejection mailed — §102 (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

5-6
Expected OA Rounds
76%
Grant Probability
99%
With Interview (+27.4%)
2y 1m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 679 resolved cases by this examiner. Grant probability derived from career allowance rate.

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