Prosecution Insights
Last updated: May 29, 2026
Application No. 18/013,619

SALT OF 2-(SUBSTITUTED PYRIMIDINYL) THIAZOLE CARBOXAMIDE COMPOUND, AND COMPOSITION AND USE THEREOF

Non-Final OA §112
Filed
Dec 29, 2022
Priority
Jun 30, 2020 — CN 202010612905.X +1 more
Examiner
WILSON, JERICA KATLYNN
Art Unit
1621
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Sunshine Lake Pharma Co. Ltd.
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
60 granted / 99 resolved
+0.6% vs TC avg
Strong +40% interview lift
Without
With
+40.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
33 currently pending
Career history
133
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
63.8%
+23.8% vs TC avg
§102
14.7%
-25.3% vs TC avg
§112
13.3%
-26.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 99 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 . DETAILED ACTION Claims 18-31 are pending in the instant application. Claims 26-31 are withdrawn from consideration. Claims 18-25 are examined herein. Priority The instant application claims benefit of foreign priority to CN202010612905.X, filed on 30 June 2020, and the benefit of priority to PCT/CN2021/102949, filed on 29 June 2021. The claims to the benefit of priority are acknowledged. As such, the effective filing date of the claims is 30 June 2020. Information Disclosure Statement The information disclosure statement (IDS), submitted on 09 February 2023, is acknowledged and considered. The submissions are in compliance with the provisions of 37 CFR 1.97. Response to Election/Restrictions Applicant’s election of Group I, with traverse, claims 18-25, in the reply filed on 18 August 2025 is acknowledged. Applicant further elects the phosphate salt of Formula (I). The traversal is on the grounds that because Groups I-III are related as product and process of use of said product that there is unity of invention and no analysis of a special technical feature was required. Applicant’s arguments have been considered but are not persuasive. The inventions lack unity of invention because they do not share a special technical feature. The technical relationship among inventions is only fulfilled when those inventions involve one or more of the same or corresponding special technical features. See 37 CFR.475(a). Since Jin et al. (WO2019062662A1) teach pharmaceutically acceptable salts of the reference compound 8, which is the instant compound, there is not a special technical feature and therefore no unity of invention. The requirement is still deemed proper and is therefore made FINAL. If the elected species is not identified in the art, the search will be expanded to additional species per MPEP 802.03. Claim Interpretation Claims 22 and 24 recite the relative term “substantially,” this term is defined in paragraph [00105] of the specification and therefore is not subject to a 112(b) rejection. 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 19-24 are 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 1 recites the phosphate crystalline Form A, this form encompasses all properties of said Form, i.e. the x-ray powder diffraction pattern values and differential scanning calorimetry peaks. Recitation of these values in dependent claims does not further limit claim 1 since the Form includes all peaks. 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. Allowable Subject Matter Claims 18 and 25 are allowed. The closest prior art is Jin et al. (WO2019062662A1) and Zhang et al. (WO2015014256A1). Jin teaches pharmaceutically acceptable salts of compounds of Formula (I) (claim 1), (pictured below), and the preferred embodiment, compound 8 (claim 11), pictured below which is the instant Formula (I). Jin discloses salts of inorganic acids, including phosphoric acid, for ion exchange (paragraph [00101]). PNG media_image1.png 202 472 media_image1.png Greyscale PNG media_image2.png 128 270 media_image2.png Greyscale Jin does not disclose an embodiment of a phosphate salt of compound 8 nor a crystalline form of a phosphate salt of compound 8. Additionally, the process of making the reference compound 8 is different than the instant compound synthetic steps. Therefore, the instant crystalline forms are not obvious over reference compound 8 as the synthetic steps required to obtain these forms are not the same as those used to prepare compound 8 and are not suggested by the work of Jin. Zhang teaches pharmaceutically acceptable salts of compounds of Formula (I)(claim 1), (pictured below), and the preferred embodiment, compound 42 (claim 20), pictured below which is the instant Formula (I). Zhang discloses salts of inorganic acids, including phosphoric acid, for ion exchange (paragraph [00142]). PNG media_image3.png 200 608 media_image3.png Greyscale PNG media_image4.png 144 298 media_image4.png Greyscale Zhang does not disclose an embodiment of a phosphate salt of compound 42 nor a crystalline form of a phosphate salt of compound 42. Additionally, the process of making the reference compound 8 is different than the instant compound synthetic steps. Therefore, the instant crystalline forms are not obvious over reference compound 42 as the synthetic steps required to obtain these forms are not the same as those used to prepare compound 42 and are not suggested by the work of Zhang. Conclusion Claims 19-24 are rejected. Claims 18 and 25 are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jerica K Wilson whose telephone number is (703)756-4690. The examiner can normally be reached Monday-Friday 9:00-5:00. 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, Clinton Brooks can be reached at (571)270-7682. 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. /J.K.W./Examiner, Art Unit 1621 /CLINTON A BROOKS/Supervisory Patent Examiner, Art Unit 1621
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Prosecution Timeline

Dec 29, 2022
Application Filed
Sep 24, 2025
Non-Final Rejection mailed — §112
Feb 24, 2026
Response Filed

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

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Prosecution Projections

1-2
Expected OA Rounds
61%
Grant Probability
99%
With Interview (+40.0%)
3y 2m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 99 resolved cases by this examiner. Grant probability derived from career allowance rate.

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