Prosecution Insights
Last updated: August 06, 2026
Application No. 18/852,557

PHARMACEUTICAL COMPOSITION COMPRISING JAK INHIBITOR, PREPARATION METHOD THEREFOR AND USE THEREOF

Non-Final OA §103§112
Filed
Sep 30, 2024
Priority
Apr 08, 2022 — CN 202210380702.1 +2 more
Examiner
SHIAO, REI TSANG
Art Unit
Tech Center
Assignee
Beijing Maxinovel Pharmaceuticals Co. Ltd.
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2m
Est. Remaining
46%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
1643 granted / 2056 resolved
+19.9% vs TC avg
Minimal -34% lift
Without
With
+-33.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
54 currently pending
Career history
2082
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
29.2%
-10.8% vs TC avg
§102
8.8%
-31.2% vs TC avg
§112
30.0%
-10.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 2056 resolved cases

Office Action

§103 §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 Priority and Status of Claims 1. This application is a 371 of PCT/CN2023/086583 04/06/2023, which claims benefit of the foreign application: CHINA CN202210380702.1 04/08/2022 and CHINA CN202310326245.2 03/22/2022. 2. Claims 1-20 are pending in the application. Claim Rejections - 35 USC § 112 3. 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. Claims 1-20 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112, first paragraph (pre- AIA ), because the specification does not reasonably provide enablement of the instant “a JAK inhibitor” without limitation (i.e., no named compounds or formula). The specification does not enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make the invention commensurate in scope with these claims. ln In re Wands, 8 USPQ2d 1400 (1988), factors to be considered in determining whether a disclosure meets the enablement requirement of 35 U.S.C. 112, first paragraph, have been described. They are: 1. the nature of the invention, 2. the state of the prior art, 3. the predictability or Iack thereof in the art, 4. the amount of direction or guidance present, 5. the presence or absence of working examples, 6. the breadth of the claims, 7. the quantity of experimentation needed, and 8. the level of the skill in the art. In the instant case: The nature of the invention The nature of the invention is composition comprising “a JAK inhibitor” without limitation (i.e., no named compounds or formula), see claim 1. The state of the prior art and the predictability or Iack thereof in the art The state of the prior art is Xu et al. US 9,745,320, it discloses a similar compound of formula (I) in column 3. The amount of direction or guidance present and the presence or absence of working examples The only direction or guidance present in the instant specification is the description of a number of “a JAK inhibitor” on pages 2-5 of the specification. There is no data present in the instant specification for the “a JAK inhibitor” without limitation (i.e., no named compound or formula). The breadth of the claims The instant breadth of the rejected claims is broader than the disclosure, specifically, the instant “a JAK inhibitor” is without limitation (i.e., no named compound or formula). The quantity or experimentation needed and the Ievel of skill in the art While the level of the skill in the chemical arts is high, it would require undue experimentation of one of ordinary skill in the art to resolve any “a JAK inhibitor” without limitation. There is no guidance or working examples present for constitutional any “a JAK inhibitor” without limitation for the instant invention. Incorporation of the limitation of “a JAK inhibitor” supported by specification into claim 1 would overcome this rejection. 4. 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. Claim 14 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 pre-AIA the applicant regards as the invention. Claim 14 recites a limitation “preferably” which is indefinite and ambiguous. Deletion of the limitation ‘preferably” would obviate the rejection. 5. 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 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. Claim Rejections - 35 USC § 103 6. The following is a quotation of 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103(a) are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or non-obviousness. This application currently names joint inventors. In considering patentability of the claims under 35 U.S.C. 103(a), the examiner presumes that the subject matter of the various claims was commonly owned at the time any inventions covered therein were made absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and invention dates of each claim that was not commonly owned at the time a later invention was made in order for the examiner to consider the applicability of 35 U.S.C. 103(c) and potential 35 U.S.C. 102(f) or (g) prior art under 35 U.S.C. 103(a). Claims 1-20 are rejected under 35 U.S.C. 103(a) as being obvious over Xu et al. US 9,745,320. Applicants claim a pharmaceutical composition comprising a JAK inhibitor, wherein the pharmaceutical composition comprises the following components in mass fraction: 0.1% to 3% of a compound of formula I or a compound of formula II or a pharmaceutically acceptable salt thereof, 35% to 93% of a solvent, and 5% to 63% of a transdermal enhancer; the solvent is selected from one or more of water, glycerol, polyethylene glycol 400, dimethyl sulfoxide, ethyl acetate, propylene glycol, or ethanol; the transdermal enhancer is selected from one or more of diethylene glycol monoethyl ether, azone, urea, oleic acid, diisopropyl adipate, menthol, N-methylpyrrolidone, imidurea, propyl gallate, isopropyl myristate, cyclodextrin, sodium dodecyl sulfate, polyoxyethylene lauryl ether, polyethylene glycol hexadecyl ether, Tween 20, Tween 40, Tween 60, Tween 80, Span 20, Span 40, Span 60, Span 80, Span 85, deoxycholate, glycocholate, glyceryl monocaprylate, caprylic/capric mono- and diglycerides, propylene glycol monolaurate, propylene glycol monocaprylate, or glyceryl behenate; PNG media_image1.png 370 620 media_image1.png Greyscale , see claim 1. Dependent claims 2-20 further limit the scope of compositions, i.e., specific amount of compound of formula I or II, solvent, formulations, preparation methods, and methods of use for treating diseases. Determination of the scope and content of the prior art (MPEP §2141.01) Xu et al. ‘320 discloses a compound/composition comprising a JAK inhibitor of a compound of formula (I), i.e., PNG media_image2.png 168 262 media_image2.png Greyscale , wherein X is S, Y and V are C or CR5, W is N, ring A is PNG media_image3.png 132 184 media_image3.png Greyscale , L1 is a bond or alkyl substituted with alkyl, cyano, or heterocycloalkyl (i..e, azetidinyl) which substituted with PNG media_image4.png 76 130 media_image4.png Greyscale , R1 or R2 is hydrogen or alkyl, L2 is PNG media_image5.png 168 122 media_image5.png Greyscale , M is alkyl, variable m is 0-2, p is 0-5 and n is 1-4. A specific compound T-15 has been examplified, i.e., PNG media_image6.png 262 284 media_image6.png Greyscale , which reads on the instant compound of formula (II), see columns 3-15. Xu et al. ‘320 compounds/compositions are used for inflammation and autoimmune diseases, see column 3-4. Preparation of compositions has been disclosed in columns 175-176. Determination of the difference between the prior art and the claims (MPEP §2141.02) The difference between instant claims and Xu et al. ‘320 is that the instant claims are embraced within the scope of Xu et al. ‘320. Finding of prima facie obviousness-rational and motivation (MPEP §2142-2143) One having ordinary skill in the art would find the 1-20 prima facie obvious because one would be motivated to employ the compositions and methods of use of Xu et al. ‘320 to obtain instant invention. The motivation to claim instant compositions and methods of use derived from the known compositions and methods of use of Xu et al. ‘320 would possess similar activity to that which is claimed in the reference. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to REI TSANG SHIAO whose telephone number is (571)272-0707. The examiner can normally be reached on 8:30 am-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, Renee Claytor can be reached on 571-272-8394. 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 http://pair-direct.uspto.gov. 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. /REI TSANG SHIAO/ Rei-tsang Shiao, Ph.D.Primary Examiner, Art Unit 1691 July 17, 2026
Read full office action

Prosecution Timeline

Sep 30, 2024
Application Filed
Jul 21, 2026
Non-Final Rejection mailed — §103, §112 (current)

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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
80%
Grant Probability
46%
With Interview (-33.9%)
2y 0m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 2056 resolved cases by this examiner. Grant probability derived from career allowance rate.

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