Prosecution Insights
Last updated: April 19, 2026
Application No. 17/998,839

FUNCTIONAL SKIN COATING POLYMER

Non-Final OA §103
Filed
Nov 15, 2022
Examiner
BABSON, NICOLE PLOURDE
Art Unit
1619
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Johns Hopkins University
OA Round
1 (Non-Final)
46%
Grant Probability
Moderate
1-2
OA Rounds
3y 8m
To Grant
78%
With Interview

Examiner Intelligence

Grants 46% of resolved cases
46%
Career Allow Rate
238 granted / 516 resolved
-13.9% vs TC avg
Strong +32% interview lift
Without
With
+31.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
63 currently pending
Career history
579
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
52.4%
+12.4% vs TC avg
§102
8.6%
-31.4% vs TC avg
§112
22.1%
-17.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 516 resolved cases

Office Action

§103
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 1-8, 11-16, 18-24, 29, 32, 35, 36, 38, 39, 48, and 55-58 are pending. Election/Restrictions Applicant’s election without traverse of the invention of Group I, claims 1-8, 11-16 and 18-20, and the species of a) as recited in claim 3(b) PNG media_image1.png 106 330 media_image1.png Greyscale wherein: R1, R2, R3 are the same or different and are each selected from the group consisting of C1- C20 alkyl, Cl-C20 cycloalkyl, C1-C20 unsaturated alkyl, C1-C20 haloalkyl, hydroxylalkyl, alkoxyalkyl, carboxyalkyl, C6-C2o aryl, and substituted aryl; and x and y are each independently an integer from 1 to 500; and b) octyl methoxycinnamate (or octinoxate) recited in claim 8(b), in the reply filed on 10/13/25 is acknowledged. Claims 21-24, 29, 32, 35, 36, 38, 39, 48, and 55-58 are withdrawn as being drawn to a nonelected invention. Claims 4, 11, and 12 are withdrawn as not being directed to the elected species. Claims 1-3, 5-8, 13-16 and 18-20 are under consideration to the extent that the composition comprises the elected species. Information Disclosure Statement Acknowledgement is made of Applicant’s information disclosure statements (IDS) submitted on 1/19/24. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement has been considered by the examiner. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 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 of this title, 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 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 nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-3, 5-8, 13-16 and 18-19 are rejected under 35 U.S.C. 103 as being unpatentable over Akthakul et al. (US 2021/0213047; effectively filed 11/9/2015) in view of Berg-Schultz et al. (US 2006/0160976). Akthakul et al. teach compositions that can form a covering, layer, film, device, and/or prosthetic skin that can be comfortably worn to provide skin barrier function, skin hydration and therapeutic and aesthetic benefits (e.g. abstract), comprising one or more crosslinked polysiloxanes associated with one or more light-filtering compounds (e.g. e.g. paragraphs 0070, 0123 and 0124; Claims 1 and 21; Example 81). Akthakul et al. teach that the polysiloxane may have the following structure: PNG media_image2.png 375 507 media_image2.png Greyscale wherein each R1, R2, and Rt1-Rt6 is independently selected from hydrogen, C1-25 alkyl, C2-25 alkenyl, C2-25 alkynyl, C5-10 aryl, halogen, amino and hydroxy, wherein the C1-25 alkyl, C2-25 alkenyl, C2-25 alkynyl, and C5-10 aryl may be optionally substituted with 1 to 3 substituents selected from C1-25 alkyl, halogen, haloC1-25 alkyl, amino and hydroxy, and wherein n is an integer between 10 and 3000. R1 and R2 of each monomer unit may be, but are not necessarily the same (i.e. may be the elected species (II) when one of R-1 or R2 are H and the remaining R1 or R2 are C1-20 alkyl or C5-10 aryl, and Rt1-Rt6 are CH3). While the elected species is not exemplified, the substituents are included among a short list of preferred ingredients. It would have been obvious to one of ordinary skill in the art at the time of the instant invention to combine the elements as claimed by known methods with no change in their respective functions, and the combination yielding nothing more than predictable results. Akthakul et al. do not teach that the one or more light-filtering compounds is the elected species of octyl methoxycinnamate. This is made up for by the teachings of Berg-Schultz et al. Berg-Schultz et al. teach novel compounds, useful as sunscreens on the basis of polymethylsiloxanes and compositions containing them (e.g. abstract). Berg-Schultz et al. teach that the sunscreen may be octyl methoxycinnamate (e.g. paragraph 0020, 0044 and Examples). Berg-Schultz et al. teach that the sunscreens are covalently bound to the polysiloxanes (e.g. paragraph 0044, Examples). Berg-Schultz et al. teach that the polysiloxane compounds show and excellent liposolubility and can thus be incorporated in high concentrations into cosmetic formulations leading to a high protection factor of the final compositions. Additionally they are homogeneously distributed in the cosmetic formulation containing at least a fatty phase and a cosmetically accepted organic solvent which leads, applied on the skin/or hair, to the formation of a protective film which protects effectively the skin and/or hair against the deleterious effects of UV-radiation (e.g. paragraph 0092). Regarding Claims 1-3, 6-8, 19 and 20, it would have been obvious to one of ordinary skill in the art at the time of filing to select the octyl methoxycinnamate, which is covalently bound to a polysiloxane, of Berg-Schultz et al. for use in the composition and polysiloxanes of Akthakul et al.. It would have been obvious to one of ordinary skill in the art to combine the elements as claimed by known methods with no change in their respective functions, and the combination yielding nothing more than predictable results. One of ordinary skill in the art would have predicted success as both of the compositions are directed to skin protecting compositions comprising polysiloxanes and UV filters, and one would have been motivated to select the polysiloxane-bound UV filters of Berg-Schultz et al. in order to provide the benefits of excellent liposolubility which allows for incorporated in high concentrations into cosmetic formulations leading to a high protection factor of the final compositions, and homogeneous distribution in the cosmetic formulation which leads to the formation of a protective film which protects effectively the skin and/or hair against the deleterious effects of UV-radiation, as taught by Berg-Schultz et al. Regarding Claim 5, Akthakul et al. teach that the crosslinked polysiloxanes form a network (e.g. paragraphs 0071, 0072). Regarding Claims 13 and 14, Akthakul et al. teach the inclusion of a Vinyl Q Resin (e.g. Examples 47 and 65). Regarding Claims 15, 16 and 18, Akthakul et al. teach the inclusion of reinforcing fillers, including fumed silica, hydrated silica, or anhydrous silica (e.g. paragraph 0085). Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NICOLE PLOURDE BABSON whose telephone number is (571)272-3055. The examiner can normally be reached M-Th 8-4:30; F 8-12:30. 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, David Blanchard can be reached on 571-272-0827. 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. /NICOLE P BABSON/ Primary Examiner, Art Unit 1619
Read full office action

Prosecution Timeline

Nov 15, 2022
Application Filed
Nov 10, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599622
Compounds to Modulate Intestinal Absorption of Nutrients
2y 5m to grant Granted Apr 14, 2026
Patent 12600821
CROSSLINKED ORGANOSILICON RESIN, A METHOD FOR PRODUCING SAME, AND A COSMETIC
2y 5m to grant Granted Apr 14, 2026
Patent 12594354
COMPOSITIONS FOR VISUALIZATION OF CLEANING EFFICACY AND PRODUCT COVERAGE
2y 5m to grant Granted Apr 07, 2026
Patent 12594230
NOVEL SPHINGOLIPID CONTAINING SALICYLIC ACID DERIVATIVE AND COMPOSITION COMPRISING SAME
2y 5m to grant Granted Apr 07, 2026
Patent 12582584
OXIDIZER AND ACID BASED SYSTEM AND REGIMEN FOR ENHANCING SKIN APPEARANCE
2y 5m to grant Granted Mar 24, 2026
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
46%
Grant Probability
78%
With Interview (+31.8%)
3y 8m
Median Time to Grant
Low
PTA Risk
Based on 516 resolved cases by this examiner. Grant probability derived from career allow rate.

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