Prosecution Insights
Last updated: August 15, 2026
Application No. 18/366,187

HETEROCYCLIC AMIDE AND UREA COMPOUNDS AS JAK2 INHIBITORS

Final Rejection §102§112
Filed
Aug 07, 2023
Priority
Aug 08, 2022 — provisional 63/395,992
Examiner
BELL, SARA ELIZABETH
Art Unit
1625
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ajax Therapeutics, Inc.
OA Round
2 (Final)
69%
Grant Probability
Favorable
3-4
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allowance Rate
38 granted / 55 resolved
+9.1% vs TC avg
Strong +38% interview lift
Without
With
+38.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
42 currently pending
Career history
105
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
22.4%
-17.6% vs TC avg
§102
26.2%
-13.8% vs TC avg
§112
30.4%
-9.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 55 resolved cases

Office Action

§102 §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 . Current Status This action is responsive to the amended claims of 06/08/2026. Claims 1, 5-6, 9-11, 23, 25, 30, 35, 38-39, 42-47, 67-71, and 76-82 are pending. Claims 5, 9-11, 35, 38, 43-45, 47, 69-71, 76, 78, and 81 have been withdrawn. Claims 1, 6, 23, 25, 30, 39, 42, 46, 67-68, 77, 79-80, and 82 have been examined on the merits. Election/Restrictions The amendments of 06/08/2026 have overcome the prior art rejections of 03/09/2026. Thus, the Markush search has been further extended to the following species: PNG media_image1.png 190 471 media_image1.png Greyscale and PNG media_image2.png 194 454 media_image2.png Greyscale . These species read on claims: 1, 6, 23, 25, 30, 39, 42, 46, 68, 77, 79-80, and 82. Further, the species of independent claim 67 have been searched and have not retrieved any prior art (see SEARCH 6 of the attached search notes). Thus, this claim is examined here. Claim 5, 9-11, 35, 38, 43-45, 47, 76, 78, and 81 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected species, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/27/2026. Claim 69-71 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 01/27/2026. Priority The effective filing date is 08/08/2022. Response to Arguments Examiner acknowledges receipt of and has reviewed the claim amendments and remarks of 06/08/2026; no new matter is found. The objection to claims 1, 6, 23, 25, 30, 38-39, 42-44, 46-47, 68, 77, and 79-82 is withdrawn since Applicant has added appropriate punctuation. Note, Applicant has also taken care of the possible objection to claim 67 noted by Examiner in ¶13 of the previous action. The 112(b) rejection of claim 1 and dependent claims 6, 23, 25, 30, 38-39, 42-44, 46-47, 68, 77, and 79-82 is withdrawn due to amendment. Applicant has struck from R8 the moiety “optionally substituted 7- to 10-membered saturated or partially unsaturated bicyclic heteroaryl”. The 112(b) and 112(d) rejections of claim 47 are withdrawn in view of Applicant’s argument. Based on the definition of heteroaryl in the specification (¶16), the artisan would understand a ring A that is PNG media_image3.png 105 111 media_image3.png Greyscale to fall within the intended scope of heteroaryl. The 112(b) and 112(d) rejections of claim 77 are maintained. Applicant's arguments have been fully considered but they are not persuasive. Applicant argues that PNG media_image4.png 63 87 media_image4.png Greyscale and PNG media_image5.png 69 84 media_image5.png Greyscale are within the scope of PNG media_image6.png 48 108 media_image6.png Greyscale and Rb is clearly defined in claim 1. Examiner disagrees, as stated in the previous action, because the moiety PNG media_image6.png 48 108 media_image6.png Greyscale is defined as PNG media_image7.png 57 99 media_image7.png Greyscale . This effectively replaces Rb with Rw. The ring B is either substituted with individual r instances of Rw or two Rw may combine to form a cycle. The cycle formed by the two instances of Rw may be further substituted by Rb. The moieties from which Rb is chosen differ from the moieties from which Rw is chosen (e.g., two Rb do not together form a cycle). Thus, the substitution of Rb directly on the ring B contradicts the very first line in claim 1: PNG media_image8.png 120 207 media_image8.png Greyscale . Since Rb and Rw are chosen from different scopes of chemical moieties, the substitution of Rb directly on the ring B in claim 77 leaves it unclear what chemical moieties are intended to be substituted on ring B. Thus, the rejection is maintained below. Please see Examiner’s suggestion for how to overcome the rejection. The 102(a)(1) rejection of claims 1, 6, 23, 30, 39, 42-44, 46-47, 77, and 79-82 over RN 2108300-36-1 is withdrawn since claim 1 is amended to where R7 is C1-6 aliphatic, not H. The 102(a)(1) rejection of claims 1, 6, 23, 25, 30, 39, 42, 46, 77, 79-80, and 82 over RN 2248759-05-7 is withdrawn since the compound RN 2248759-05-7 was originally listed in claim 1 under “wherein the compound is not” RN 2248759-05-7. The 102(a)(1) rejection of claims 1, 6, 30, 39, 46, 77, 79, and 82 over YASUO is withdrawn since claim 1 is amended so that X is either C or N, not O. The 103 rejection of claims 1 and 68 over YASUO in view of CHAUDHARI is withdrawn since the compound of YASUO no longer reads on claim 1, by the amendment cited above. Claim Rejections - 35 USC § 112 - Maintained 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. Claim 77 is 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. Claim 77 recites PNG media_image6.png 48 108 media_image6.png Greyscale is selected from structures including “ PNG media_image4.png 63 87 media_image4.png Greyscale ” and “ PNG media_image5.png 69 84 media_image5.png Greyscale ”. This limitation lacks antecedent basis in the claim. Claim 77 depends from claim 1 wherein the moiety PNG media_image6.png 48 108 media_image6.png Greyscale is defined as PNG media_image7.png 57 99 media_image7.png Greyscale , effectively replacing Rb with Rw. Since claim 77 recites the above cycles substituted with Rb rather than Rw it is unclear which substituent is meant to be substituted on the ring B. In claim 1, Rb and Rw are chosen from different moieties. Thus, the recitation of “ PNG media_image4.png 63 87 media_image4.png Greyscale ” and “ PNG media_image5.png 69 84 media_image5.png Greyscale ” leaves the metes and bounds of the claim undefined rendering the claim indefinite. To overcome: Applicant could replace the Rb moiety with Rw in the two claim 77 structures “ PNG media_image4.png 63 87 media_image4.png Greyscale ” and “ PNG media_image5.png 69 84 media_image5.png Greyscale ” . 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. Claim 77 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 77 recites PNG media_image6.png 48 108 media_image6.png Greyscale is selected from structures including “ PNG media_image4.png 63 87 media_image4.png Greyscale ” and “ PNG media_image5.png 69 84 media_image5.png Greyscale ”. Parent claim 1 recites the moiety PNG media_image6.png 48 108 media_image6.png Greyscale is PNG media_image7.png 57 99 media_image7.png Greyscale , effectively replacing Rb with Rw. Thus, Rb is not directly substituted on ring B. Further, Rb and Rw are chosen from different moieties. Thus, claim 77 recites a structure outside of the scope of parent claim 1 and does not properly further limit the claim. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Response to Amendment Claim Rejections - 35 USC § 102 – Necessitated by Amendment 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, 6, 23, 25, 30, 39, 42, 46, 77, 79-80, and 82 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by AURORA (Aurora Fine Chemicals, American Chemical Society Chemical Abstracts Service Registry No. 2785197-25-1 & 2785357-41-5, available 06 July 2022). AURORA teaches RN 2785197-25-1 PNG media_image9.png 491 526 media_image9.png Greyscale wherein: ring A is phenyl, p is 0, Ra is not present, L is a covalent bond, R8 is substituted C1 aliphatic, X is -N(R7)-, R7 is C1 aliphatic, each R1-R5 is H, PNG media_image6.png 48 108 media_image6.png Greyscale is PNG media_image10.png 57 95 media_image10.png Greyscale , W is N, r is 0, and Rw is not present. AURORA also teaches RN 2785357-41-5 PNG media_image11.png 196 464 media_image11.png Greyscale wherein: ring A is phenyl, p is 0, Ra is not present, L is a covalent bond, R8 is C3 aliphatic, X is -N(R7)-, R7 is C1 aliphatic, each R1-R5 is H, PNG media_image6.png 48 108 media_image6.png Greyscale is PNG media_image10.png 57 95 media_image10.png Greyscale , W is N, r is 0, and Rw is not present. Alternatively, L is a C1 aliphatic and R8 is C2 aliphatic; or L is a C2 aliphatic and R8 is a C1 aliphatic. Conclusion Claims 1, 6, 23, 25, 30, 39, 42, 46, 77, 79-80, and 82 are rejected. Claim 68 is objected to due to its dependence on a rejected claim. Claim 67 is allowable. The close art for the species of claim 67 is AURORA, above. The compounds of AURORA have at least two structural differences from the species of claim 67. For example, comparing the AURORA compounds PNG media_image12.png 231 490 media_image12.png Greyscale and PNG media_image11.png 196 464 media_image11.png Greyscale to instant compound I-8 PNG media_image13.png 139 239 media_image13.png Greyscale the CF3 is in a different position on ring A and the methyl group on ring A is not found in the compounds of AURORA. Similarly, compared to instant compound I-10 PNG media_image14.png 121 239 media_image14.png Greyscale the ring A is not a heteroaryl and the substituents on ring A differ in position and/or chemical structure. Note, a majority of species in claim 67 share the ring A of compound I-10. Thus, the species of AURORA do not teach the instant compounds. Further, the other art of record does not anticipate or provide a motivation to modify a prior art compound to arrive at the instant compounds. 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 SARA ELIZABETH BELL whose telephone number is (703)756-5372. The examiner can normally be reached Monday-Friday 9:00-5:30. 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, Andrew Kosar can be reached at 571-272-0913. 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. /S.E.B./Examiner, Art Unit 1625 /JOHN S KENYON/Primary Patent Examiner, Art Unit 1625
Read full office action

Prosecution Timeline

Aug 07, 2023
Application Filed
Mar 09, 2026
Non-Final Rejection mailed — §102, §112
Jun 08, 2026
Response Filed
Jul 29, 2026
Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12702660
A METHOD FOR TREATING CANCER WITH AN ORAL DOSAGE FORM OF AN ESTROGEN RECEPTOR-ALPHA INHIBITOR
4y 8m to grant Granted Aug 11, 2026
Patent 12697335
METHOD FOR TREATING IMMUNE TOXICITIES INDUCED BY IMMUNE CHECKPOINT INHIBITORS
3y 6m to grant Granted Aug 04, 2026
Patent 12692269
THERAPEUTIC COMPOUNDS
4y 2m to grant Granted Jul 28, 2026
Patent 12653830
SUBSTITUTED IMIDAZOQUINOXALINE COMPOUNDS AND USES THEREOF
4y 3m to grant Granted Jun 16, 2026
Patent 12653814
BENZIMIDAZOLONE-BASED CINNAMAMIDE DERIVATIVE AS TRPV1 ANTAGONIST AND PHARMACEUTICAL COMPOSITION FOR TREATMENT OR PREVENTION OF PAIN CONTAINING SAME AS ACTIVE INGREDIENT
3y 9m to grant Granted Jun 16, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
69%
Grant Probability
99%
With Interview (+38.2%)
3y 8m (~8m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 55 resolved cases by this examiner. Grant probability derived from career allowance 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