Prosecution Insights
Last updated: August 06, 2026
Application No. 18/293,160

Compounds for the Treatment of Pain, in Particular, Neuropathic Pain, and/or Other Diseases or Disorders that are Associated with AT2R and/or AT2R Mediated Signaling

Non-Final OA §112
Filed
Jan 29, 2024
Priority
Jul 30, 2021 — provisional 63/227,552 +2 more
Examiner
HABTE, KAHSAY
Art Unit
1624
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Confo Therapeutics N V
OA Round
1 (Non-Final)
85%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1375 granted / 1616 resolved
+25.1% vs TC avg
Moderate +7% lift
Without
With
+7.3%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
73 currently pending
Career history
1655
Total Applications
across all art units

Statute-Specific Performance

§101
3.3%
-36.7% vs TC avg
§103
6.3%
-33.7% vs TC avg
§102
16.9%
-23.1% vs TC avg
§112
50.4%
+10.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1616 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 . Claims 6-20 are pending in this application. Election/Restrictions Applicant’s election without traverse of Species A: Piperazine attached to phenyl in the reply filed on 06/22/2026 is acknowledged. The claims are drawn to multiple inventions for reasons set forth in the restriction requirement. The claims are examined only to the extent that they read on the elected invention. Cancellation of the non-elected subject matter is recommended in response to this Office Action. Note that applicants have also to delete non-elected species such as piperidyl attached to phenyl (Species b.) from claim 17. 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 10 and 14-16 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: a. Claim 10 is rejected because there is no period at the end of the claim. It is recommended that applicants insert a period at the end of the claim. If the chemical structure of Formula (VI) is the end of the claim, applicants have to insert “(VI).” at the end of the claim as it was done in claim 7 (see below). PNG media_image1.png 371 932 media_image1.png Greyscale b. Claims 14-16 are rejected because the chemical structures in claims 14-16 are not drawn properly. The bonds that connect the N atoms inside the ring are missing or are short and not connecting the N atom in the ring properly. PNG media_image2.png 164 257 media_image2.png Greyscale The fluoro substituent on the phenyl ring is also not connected well. It is recommended that applicants redraw the defective chemical structures and fix the problem. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 6-20 are rejected on the basis that it contains an improper Markush grouping of alternatives. See In re Harnisch, 631 F.2d 716, 721-22 (CCPA 1980) and Ex parte Hozumi, 3 USPQ2d 1059, 1060 (Bd. Pat. App. & Int. 1984). A Markush grouping is proper if the alternatives defined by the Markush group (i.e., alternatives from which a selection is to be made in the context of a combination or process, or alternative chemical compounds as a whole) share a “single structural similarity” and a common use. A Markush grouping meets these requirements in two situations. First, a Markush grouping is proper if the alternatives are all members of the same recognized physical or chemical class or the same art-recognized class, and are disclosed in the specification or known in the art to be functionally equivalent and have a common use. Second, where a Markush grouping describes alternative chemical compounds, whether by words or chemical formulas, and the alternatives do not belong to a recognized class as set forth above, the members of the Markush grouping may be considered to share a “single structural similarity” and common use where the alternatives share both a substantial structural feature and a common use that flows from the substantial structural feature. See MPEP § 2117. The Markush grouping of Species b. (Piperidine attached to phenyl) and Species c. (Others, species not covered by a. or b.) is improper because the alternatives defined by the Markush grouping do not share both a single structural similarity and a common use for the following reasons: Piperidines attached to phenyl (i.e. species b.) and other heterocyclic or carbocyclic rings attached to a phenyl or to a heteroaryl rings (i.e. species c.) don’t share a substantial structural feature and common use. Claim 6 embraces myriad compounds that are not taught in the specification. To overcome this rejection, Applicant may set forth each alternative (or grouping of patentably indistinct alternatives) within an improper Markush grouping in a series of independent or dependent claims and/or present convincing arguments that the group members recited in the alternative within a single claim in fact share a single structural similarity as well as a common use. In order to overcome this rejection, applicants have to amend the definition of A and variables X, Y, Z according to the elected species. This can be done by amending the claims and limit the definition of A to piperazine and the definition of X, Y and Z to carbon. Claim Objections Claim 6 is objected to because of the following informalities: In claim 6 (in the definition of X and Y), the term “,And” is a typographical error. It should read as “, and”. Appropriate correction is required. Information Disclosure Statement 9. Applicant’s Information Disclosure Statement, filed on 01/29/2024 has been acknowledged. Please refer to Applicant’s copies of the 1449 submitted herewith. Conclusion 10. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Kahsay Habte Ph.D. whose telephone number is (571)272-0667. The examiner can normally be reached on 8:30 - 5:00 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, JEFFREY MURRAY can be reached on 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see https://ppair-my.uspto.gov/pair/PrivatePair. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Kahsay Habte/ Primary Examiner, Art Unit 1624 July 13, 2026
Read full office action

Prosecution Timeline

Jan 29, 2024
Application Filed
Jul 16, 2026
Non-Final Rejection mailed — §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
85%
Grant Probability
92%
With Interview (+7.3%)
1y 8m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1616 resolved cases by this examiner. Grant probability derived from career allowance rate.

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