Prosecution Insights
Last updated: April 19, 2026
Application No. 18/017,108

COMPOSITIONS AND METHODS FOR ACTIVATING PYRUVATE KINASE

Final Rejection §112
Filed
Jan 20, 2023
Examiner
KIFLE, BRUCK
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Regents of the University of Michigan
OA Round
2 (Final)
79%
Grant Probability
Favorable
3-4
OA Rounds
2y 0m
To Grant
95%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1356 granted / 1712 resolved
+19.2% vs TC avg
Strong +16% interview lift
Without
With
+15.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
27 currently pending
Career history
1739
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
12.2%
-27.8% vs TC avg
§102
13.0%
-27.0% vs TC avg
§112
53.7%
+13.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1712 resolved cases

Office Action

§112
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 . Applicant’s amendments and remarks filed March 11, 2026 have been received and reviewed. Claims 1-6, 8-9, 12, 20-26 and 44-51 are now pending in this application. Claims 1-3, 12 and 20-26 remain withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected subject matter. In response to this office action, Applicants need to cancel these claims or take other appropriate action. Claim Rejections - 35 USC § 112 Claims 4-7, 8-9 and 44 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. i) Claim 4 now states a “compound, comprising” which still renders the claims open-ended. The term “compound” is suggested because a “composition” necessarily requires at least two ingredients to be present and the term “comprising” leaves the metes and bounds of the claim unascertainable. Appropriate correction is required. Replacing “comprising” with “of formula” or “having the formula” or other alternative definite language is suggested. iii) Regarding the term “substituted” without saying which substituents are intended, Applicants point to the specification for support. However, the definitions Applicants’ point to are flawed and open-ended and mere examples. Applicants should list the intended substituents into the claims. Ketone, aldehyde, ester and amide, for example, are classes of compounds and not substituents. It is unclear which substituent is intended. iv) Regarding the term “heterocyclyl,” Applicants have amended the claims to limit the rings to 5- to 10-membered monocyclic rings. The definition in the specification includes heteroaryl groups. However, it is still not known how many and which heteroatoms make up the ring. The specification is open-ended with mere examples. In addition, language which is clearly non-limiting which reads “heteroatoms include, but are not limited to nitrogen, oxygen and sulfur” is used. The claims need to state which heteroatoms are present and how many may be present. If only the examples, i.e., N, O or S are intended, these can easily be incorporated into the claims. vi) In claim 8, the pharmaceutical composition should have “an effective amount of a compound according to claim 4” for the pharmaceutical composition to work as intended. Also, the claim now has “or salt” which is not present in claim 4 and, therefore, lacks antecedent basis. vii) Claim 9 is a duplicate of claim 4 as it is drawn to the same compound. Claims 45-51 are 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. THIS ACTION IS MADE FINAL. 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 BRUCK KIFLE whose telephone number is (571)272-0668. The examiner can normally be reached 8 AM - 6 PM, M-F. 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. March 26, 2026 /BRUCK KIFLE/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Jan 20, 2023
Application Filed
Nov 13, 2024
Response after Non-Final Action
Dec 03, 2025
Non-Final Rejection — §112
Mar 11, 2026
Response Filed
Mar 26, 2026
Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600732
BIFUNCTIONAL COMPOUNDS FOR DEGRADING BTK VIA UBIQUITIN PROTEOSOME PATHWAY
2y 5m to grant Granted Apr 14, 2026
Patent 12595238
PROCESS FOR PRODUCING HEXAHYDRO 1,3,5-TRINITRO-1,3,5-TRIAZINE AND OCTAHYDRO-1,3,5,7-TETRANITRO-1,3,5,7-TETRAZOCINE
2y 5m to grant Granted Apr 07, 2026
Patent 12583863
SYNTHETICALLY MODIFIABLE ION CHANNELS
2y 5m to grant Granted Mar 24, 2026
Patent 12577239
NOVEL SULFILIMINES OR SULFOXIMINES CONTAINING FUNGICIDAL HETEROCYCLIC COMPOUNDS
2y 5m to grant Granted Mar 17, 2026
Patent 12566113
REVERSIBLE FIXING REAGENTS AND METHODS OF USE THEREOF
2y 5m to grant Granted Mar 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
79%
Grant Probability
95%
With Interview (+15.9%)
2y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1712 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month