Prosecution Insights
Last updated: July 17, 2026
Application No. 18/367,379

Compositions and Methods for Treatment or Prevention of Oral Mucositis

Non-Final OA §112
Filed
Sep 12, 2023
Priority
Sep 02, 2015 — provisional 62/213,539 +3 more
Examiner
VAJDA, KRISTIN ANN
Art Unit
1622
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Pathways Bioscience LLC
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allowance Rate
1351 granted / 1609 resolved
+24.0% vs TC avg
Moderate +11% lift
Without
With
+10.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 9m
Avg Prosecution
40 currently pending
Career history
1641
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
14.5%
-25.5% vs TC avg
§102
27.9%
-12.1% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1609 resolved cases

Office Action

§112
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 . Claims 1-12 are pending in the instant application. Claims 1-9 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to non-elected subject matter. The withdrawn subject matter is patentably distinct from the elected subject matter as it differs in structure and element and would require separate search considerations. In addition, a reference which anticipates one group would not render obvious the other. Claims 10-12 are rejected. Information Disclosure Statement The information disclosure statement filed on December 11, 2023 has been considered and a signed copy of form 1449 is enclosed herewith. Election/Restrictions Applicant’s election with traverse of Group II, claims 10-12, and the compound 1,3-Dibenzoylpropane in the response filed on April 9, 2026 is acknowledged. The traversal is on the ground(s): there is no undue burden. This not found to be persuasive because the inventions are independent and distinct because there is no patentable co-action between the groups and a reference anticipating one member will not render another obvious. Each group is directed to art recognized divergent subject matter which require different searching strategies for each group. Moreover, the examiner must perform a commercial database search on the subject matter of each group in addition to a paper search, which is quite burdensome to the examiner. Therefore, the restriction requirement (between groups) is still deemed proper and is hereby made final. Upon further search and consideration, however, the election of species requirement is withdrawn (i.e., the full scope of the subject matter of claims 10-12 has been searched and examined in its entirety). 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 10-12 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. With regards to claim 10, the term “derivative thereof” of 1,3-diphenyl-1,3-propanedione (DBM) is not defined in the specification; therefore, the claims are rendered indefinite. In other words, it is unclear to the examiner what exactly can be considered a derivative of DBM. The specification gives an embodiment (see [0034]) wherein “the derivative of DBM is selected from the group consisting of 1,3-diphenyl-1,3-propanedione, 1,3-Dibenzoylpropane, 2-Bromo-1,3-diphenylpropane-1,3-dione, Benzoic anhydride, 1,3-Bis(4-methoxyphenyl)-1,3-propanedione, and 1-(2-Hydroxyphenyl)-3-phenyl-1,3-propanedione.” However, the term is not defined in the specification in a way that would allow one of ordinary skill in the art to immediately envisage what can be considered a derivative of DBM or what exactly can fit within the scope of this term. Also, with regards to claim 10, the term “skin condition” is not defined in the specification; therefore, the claims are rendered indefinite. In other words, it is unclear to the examiner what exactly can be considered a skin condition. The specification gives an embodiment (see [0012]) wherein “the local or topical administration of 1,3-diphenyl-1,3-propanedione or analogs thereof may be for the treatment of skin conditions including, for example, irritation, rashes, infections, burns, insect bites, and sunburn. In another embodiment, the skin conditions also include several that are related to the patient's immune system. Common immune-related cutaneous adverse events (‘immune-related disorders’) include vitiligo, alopecia, and dermatoses from forms of pruritus, psoriasis, eczema, and lichenoid conditions.” However, the term is not defined in the specification in a way that would allow one of ordinary skill in the art to immediately envisage what can be considered a skin condition or what exactly can fit within the scope of this term. This rejection can be overcome by amending claim 10 to include the limitation of claim 12 or “ wherein the derivative of DBM comprises a structurally-related analog of 1,3-Diphenyl-1,3-propanedione selected from 1,3-Dibenzoylpropane, 2-Bromo-1,3-diphenylpropane-1,3-dione, 2-Fluoro-1,3- diphenylpropane-1,3-dione, Benzoic anhydride, 1,3-Bis(4-methoxyphenyl)-1,3- propanedione, 1-(2-Hydroxyphenyl)-3-phenyl-1,3-propanedione, 2-Fluoro-1,3- bis(perfluorophenyl)propane-1,3-dione, 1,3-Bis(2-fluorophenyl) propane-1,3-dione, and 2-Fluoro-1,3-bis(4-fluoropheny1)propane-1,3-dione” and to include specific types of skin conditions which can be treated. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KRISTIN ANN VAJDA whose telephone number is (571)270-5232. The examiner can normally be reached Mon-Fri 6:00-4:00. 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, James Alstrum-Acevedo can be reached on 571-272-5548. 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. /KRISTIN A VAJDA/Primary Examiner, Art Unit 1622
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Prosecution Timeline

Sep 12, 2023
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
84%
Grant Probability
95%
With Interview (+10.9%)
1y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1609 resolved cases by this examiner. Grant probability derived from career allowance rate.

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