Prosecution Insights
Last updated: April 19, 2026
Application No. 18/505,748

UTILIZING COMPOUND-PROTEIN MACHINE LEARNING REPRESENTATIONS TO GENERATE BIOACTIVITY PREDICTIONS

Final Rejection §112
Filed
Nov 09, 2023
Examiner
NEGIN, RUSSELL SCOTT
Art Unit
1686
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Recursion Pharmaceuticals Inc.
OA Round
6 (Final)
56%
Grant Probability
Moderate
7-8
OA Rounds
4y 1m
To Grant
89%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
504 granted / 899 resolved
-3.9% vs TC avg
Strong +33% interview lift
Without
With
+33.3%
Interview Lift
resolved cases with interview
Typical timeline
4y 1m
Avg Prosecution
45 currently pending
Career history
944
Total Applications
across all art units

Statute-Specific Performance

§101
25.1%
-14.9% vs TC avg
§103
36.9%
-3.1% vs TC avg
§102
7.4%
-32.6% vs TC avg
§112
18.0%
-22.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 899 resolved cases

Office Action

§112
DETAILED ACTION Comments The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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. Claims 1-20 are pending and examined in the instant Office action. Absent a limiting description from the specification, the phrase “binding score” is broadly interpreted to correspond to any numerical value regarding the compatibility of a compound-protein pair. Withdrawn Rejections The 35 U.S.C. 112 and 35 U.S.C. 103 rejections from the previous Office action are withdrawn in view of amendments filed to the instant set of claims on 10 December 2025. Claim Rejections - 35 USC § 112(a) - Written Description The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. The following rejection is necessitated by amendment: Claims 1-19 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. The independent claims have been amended to add refining a machine learning binding representation by utilizing a protein confidence filter to remove an additional binding score of the combination of binding scores. While Figure 4 and paragraph 83 of the specification have support for using confidence machine learning models to refine features within a combination of data, the specification does not have support for removing an ADDITIONAL binding score from the combination of binding scores. This lack of possessing of ADDITIONAL binding scores comprises NEW MATTER. Claim Rejections - 35 USC § 112(b) - Indefiniteness 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. The following rejection is necessitated by amendment: Claims 1-19 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. While the independent claims have been amended to recite removing an additional binding score of a combination of the plurality binding scores, it is unclear as to what makes a binding score an “additional binding score” relative to the combination of the plurality of binding scores. Claim 3 recites the limitation "the target biological activity" in line 3. There is insufficient antecedent basis for this limitation in the claim. Claim 3 does not previously recite “target biological activity”. Claim 11 recites the limitation "the target biological activity" in line 4. There is insufficient antecedent basis for this limitation in the claim. Claim 11 does not previously recite “target biological activity”. Claim 17 recites the limitation "the target biological activity" in lines 4-5. There is insufficient antecedent basis for this limitation in the claim. Claim 17 does not previously recite “target biological activity”. Allowable Subject Matter The claims are subject matter eligible because the core of the claims involve data manipulations for multiple machine learning models comprising neural networks, wherein the computations are too complex to be performed in the human mind. The claims are free of the prior art because the prior art does not teach generating a refined compound-protein machine learning binding representation based on utilizing a protein confidence filter to remove an additional binding score of the combination of the plurality of binding scores from the compound-protein machine learning binding representation. E-mail Communications Authorization Per updated USPTO Internet usage policies, Applicant and/or applicant’s representative is encouraged to authorize the USPTO examiner to discuss any subject matter concerning the above application via Internet e-mail communications. See MPEP 502.03. To approve such communications, Applicant must provide written authorization for e-mail communication by submitting the following statement via EFS-Web (using PTO/SB/439) or Central Fax (571-273-8300): Recognizing that Internet communications are not secure, I hereby authorize the USPTO to communicate with the undersigned and practitioners in accordance with 37 CFR 1.33 and 37 CFR 1.34 concerning any subject matter of this application by video conferencing, instant messaging, or electronic mail. I understand that a copy of these communications will be made of record in the application file. Written authorizations submitted to the Examiner via e-mail are NOT proper. Written authorizations must be submitted via EFS-Web (using PTO/SB/439) or Central Fax (571-273-8300). A paper copy of e-mail correspondence will be placed in the patent application when appropriate. E-mails from the USPTO are for the sole use of the intended recipient, and may contain information subject to the confidentiality requirement set forth in 35 USC § 122. See also MPEP 502.03. Conclusion No claim is allowed. 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 Russell Negin, whose telephone number is (571) 272-1083. This Examiner can normally be reached from Monday through Thursday from 8 am to 3 pm and variable hours on Fridays. If attempts to reach the Examiner by telephone are unsuccessful, the Examiner’s Supervisor, Larry Riggs, Supervisory Patent Examiner, can be reached at (571) 270-3062. /RUSSELL S NEGIN/ Primary Examiner, Art Unit 1686 19 February 2026
Read full office action

Prosecution Timeline

Nov 09, 2023
Application Filed
Sep 22, 2024
Non-Final Rejection — §112
Nov 13, 2024
Interview Requested
Nov 19, 2024
Examiner Interview Summary
Nov 19, 2024
Applicant Interview (Telephonic)
Nov 25, 2024
Response Filed
Dec 16, 2024
Final Rejection — §112
Feb 12, 2025
Interview Requested
Feb 19, 2025
Examiner Interview Summary
Feb 19, 2025
Applicant Interview (Telephonic)
Feb 28, 2025
Request for Continued Examination
Mar 05, 2025
Response after Non-Final Action
Mar 13, 2025
Non-Final Rejection — §112
Apr 30, 2025
Interview Requested
May 08, 2025
Examiner Interview Summary
May 08, 2025
Applicant Interview (Telephonic)
Jun 13, 2025
Response Filed
Aug 17, 2025
Final Rejection — §112
Sep 16, 2025
Interview Requested
Sep 25, 2025
Applicant Interview (Telephonic)
Sep 25, 2025
Examiner Interview Summary
Oct 02, 2025
Request for Continued Examination
Oct 07, 2025
Response after Non-Final Action
Oct 27, 2025
Non-Final Rejection — §112
Nov 24, 2025
Interview Requested
Dec 02, 2025
Applicant Interview (Telephonic)
Dec 02, 2025
Examiner Interview Summary
Dec 10, 2025
Response Filed
Feb 19, 2026
Final Rejection — §112
Apr 08, 2026
Interview Requested

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
56%
Grant Probability
89%
With Interview (+33.3%)
4y 1m
Median Time to Grant
High
PTA Risk
Based on 899 resolved cases by this examiner. Grant probability derived from career allow rate.

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