Prosecution Insights
Last updated: September 17, 2026
Application No. 18/858,878

COMPOSITIONS USEFUL FOR MODULATING SPLICING

Non-Final OA §112§DP
Filed
Oct 22, 2024
Priority
Apr 27, 2022 — provisional 63/335,570 +1 more
Examiner
MOORE, SUSANNA
Art Unit
Tech Center
Assignee
Skyhawk Therapeutics Inc.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
858 granted / 1261 resolved
+8.0% vs TC avg
Strong +32% interview lift
Without
With
+31.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
67 currently pending
Career history
1326
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
17.8%
-22.2% vs TC avg
§102
16.3%
-23.7% vs TC avg
§112
40.0%
+0.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1261 resolved cases

Office Action

§112 §DP
DETAILED ACTION 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 . This is the first action on the merits. Claims 1-13, 15-19 and 21 are pending and under consideration. Information Disclosure Statement The information disclosure statement (IDS) submitted on September 12, 2025 and May 5, 2026 are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. The applicant has an obligation to call the most pertinent prior art to the attention of the U.S. Patent and Trademark Office in a proper fashion. Burying one reference in one hundred other IDS references is like citing nothing. PENN YAN BOATS, INC. v. SEA LARK BOATS, INC. 175 USPQ 260 (S.D. Fla. 1972). Golden Valley Microwave Foods, Inc. v. Weaver Popcorn Co. Inc., 24 USPQ2d 1801 (U.S. Dist. N. Dist. IN 1992). Claim Objections Claim 2 is objected to because of the following informalities: the terms CF3 and CHF2 are redundant since the claim encompasses said terms under haloalkyl. Appropriate correction is required. Claim 21 is objected to because of the following informalities: the term “a” prior to “Ataxin” in line 1 should be removed. Also, the term “to” in line 3 should be replaced with “with.” Appropriate correction is required. 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 2 and 18 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 pre-AIA the applicant regards as the invention. In claim 2, the C6-10 aryl lacks antecedent basis. The term is also found after the wherein clause in said claim. To overcome the rejection, the claim may be amended to phenyl as found in claim 1. Claim 18 is vague since claims may not refer to the Specification. Verily, claims that refer to the specification are improper. See Ex parte Fressola, 27 USPQ.2d 1608 (BPAI 1993). Claim 18 improperly refers to Table 1. The rejection may be obviated by inserting the compounds from Table 1 into the claim. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the claims at issue are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); and In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO internet Web site contains terminal disclaimer forms which may be used. Please visit http://www.uspto.gov/forms/. The filing date of the application will determine what form should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to http://www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-13, 15-19 and 21 are provisionally rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 1-7, 14-20 and 22 of copending Application No. 18858881. Although the conflicting claims are not identical, they are not patentably distinct from each other because many of the compounds found in claim 19 of the ‘881 application, described on pages 72-77 of the specification, are obvious variants of the presently claimed compounds. For example, the species shown below which is found on page 72 of the ‘881 specification: PNG media_image1.png 266 552 media_image1.png Greyscale has a methyl group substituted on the R24 alkyne. Since a methyl group is considered a homolog of hydrogen these compounds are considered equivalent. The MPEP 2144.09 states “Compounds which are position isomers (compounds having the same radicals in physically different positions on the same nucleus) or homologs (compounds differing regularly by the successive addition of the same chemical group, e.g., by -CH2- groups) are generally of sufficiently close structural similarity that there is a presumed expectation that such compounds possess similar properties. In re Wilder, 563 F.2d 457, 195 USPQ 426 (CCPA 1977). This is the only difference between a claimed compound and the cited compound above. This is one of the many species which render the instant application obvious. The same utility is claimed and disclosed for both applications. This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. Claims 1-13, 15-19 and 21 are provisionally rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable over claims 1-7, 14, 16-25 and 27 of copending Application No. 18858876. Although the conflicting claims are not identical, they are not patentably distinct from each other because many of the compounds found in claim 19 of the ‘876 application, described on pages 72-77 of the specification, are obvious variants of the presently claimed compounds. For example, the species shown below which is found on page 68 of the ‘876 specification: PNG media_image2.png 202 505 media_image2.png Greyscale is a positional isomer of the presently claimed compounds based on R23 and R24, and are considered equivalent. The MPEP 2144.09 states “Compounds which are position isomers (compounds having the same radicals in physically different positions on the same nucleus) or homologs (compounds differing regularly by the successive addition of the same chemical group, e.g., by -CH2- groups) are generally of sufficiently close structural similarity that there is a presumed expectation that such compounds possess similar properties. In re Wilder, 563 F.2d 457, 195 USPQ 426 (CCPA 1977). This is the only difference between a claimed compound and the cited compound above. This is one of the many species which render the instant application obvious. The same utility is claimed and disclosed for both applications. This is a provisional obviousness-type double patenting rejection because the conflicting claims have not in fact been patented. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SUSANNA MOORE whose telephone number is (571)272-9046. The examiner can normally be reached Monday - Friday, 10:00 am to 7:00 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 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. /SUSANNA MOORE/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Oct 22, 2024
Application Filed
Aug 05, 2026
Non-Final Rejection mailed — §112, §DP (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
68%
Grant Probability
99%
With Interview (+31.6%)
2y 11m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1261 resolved cases by this examiner. Grant probability derived from career allowance rate.

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