Prosecution Insights
Last updated: July 17, 2026
Application No. 17/611,891

OIL-IN-WATER MACROEMULSION

Non-Final OA §103
Filed
Nov 16, 2021
Priority
May 17, 2019 — EU PCT/EP2019/062816 +1 more
Examiner
SOROUSH, LAYLA
Art Unit
1622
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Symrise AG
OA Round
3 (Non-Final)
40%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 40% of resolved cases
40%
Career Allowance Rate
358 granted / 884 resolved
-19.5% vs TC avg
Strong +43% interview lift
Without
With
+43.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
42 currently pending
Career history
932
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
58.1%
+18.1% vs TC avg
§102
2.6%
-37.4% vs TC avg
§112
1.9%
-38.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 884 resolved cases

Office Action

§103
DETAILED ACTION A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on February 5, 2026 has been entered. Claims 1-14 and 17 are pending. Claims 1- 9, 17 herein acted on the merits. 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 . Application Priority This application filed 11/16/2021, is 371 of PCT/EP2020/063736 filed on 05/15/2020. Response to Arguments Applicant’s arguments over the 35 U.S.C. 103(a) rejection of claims 1-9, and 17 over Adams et al. (WO2001096510A1) in view of Dorschner et al. (US20030170284A1) Bilbrey is as applied above is persuasive in view of amendments made to the claims. The rejection is withdrawn. The following rejections are made: 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, 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 1-9, and 17 are rejected under 35 U.S.C. 103 as being unpatentable over Sonti et al. (US10426743B2). Sonti et al. teaches a topical pharmaceutical oil-in-water emulsion composition comprising: 3,5-dihydroxy-4-isopropyl-trans-stilbene or a pharmaceutically acceptable salt thereof in an amount of about 0.05% to about 2% by weight, based on the total weight of the composition; an oil phase comprising medium chain triglycerides of a carbon length from six to twelve carbons in an amount of about 2% to about 30% by weight, based on the total weight of the composition; a water phase; a surfactant in an amount of about 1% to about 20% by weight, based on the total weight of the composition, wherein the surfactant comprises at least one non-ionic emulsifying wax NF; and a dermatologically acceptable excipient selected from the group consisting of an antioxidant, a pH adjusting agent, a chelating agent, a preservative, a co-solvent and combinations thereof; wherein the 3,5-dihydroxy-4-isopropyl-trans-stilbene or a pharmaceutically acceptable salt thereof is solubilized in the oil phase and is the only active ingredient in the oil phase; wherein the oil phase is substantially free of petrolatum and mineral oil; wherein the oil-in-water emulsion is homogeneous; and wherein the average droplet size of the oil phase is from about 0.1 microns to about 35 microns. The present topical pharmaceutical compositions may further comprise a gelling agent. In an embodiment, the gelling agent is a mixture of two or more gelling agents.Exemplary gelling agents include, but are not limited to, agar, alginate, arabinoxylan, carrageenan, carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropylcellulose, hydroxypropyl methylcellulose, cellulose, curdlan, gelatin, gellan, β-glucan, tragacanth gum, guar gum, gum arabic, locust bean gum, pectin, starch, a carbomer, acrylate copolymers, silica, xanthan gum, salts thereof, or a combination or mixture thereof. Suitably, the gelling agent is present in the composition in an amount from about 0.1% to about 2% by weight, based on the total weight of the composition. In one embodiment, the gelling agent is present in the composition in an amount from about 0.2% to about 1% by weight, based on the total weight of the composition.Such pharmaceutical compositions should:(i) not irritate the skin,(ii) be specifically adapted to deliver the active ingredient onto or into the skin so as to treat a particular dermatological condition or disorder,(iii) be cosmetically elegant to ensure that the patient complies with the prescribed treatment regimen,(iv) provide penetration of the active ingredient to the appropriate layers of the skin and engage the desired target, and(v) minimize systemic exposure while achieving local dermal/epidermal delivery. Sonti fails to specify exact amounts as claimed. It is well-established that merely selecting proportions and ranges is not patentable absent a showing of criticality. In re Becket, 33 USPQ 33; In re Russell, 1469 USPQ 426. "[W]here the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955); see also Peterson, 315 F.3d at 1330, 65 USPQ2d at 1382 ("The normal desire of scientists or artisans to improve upon what is already generally known provides the motivation to determine where in a disclosed set of percentage ranges is the optimum combination of percentages.") Conclusions No claim is allowable. If Applicants should amend the claims, a complete and responsive reply will clearly identify where support can be found in the disclosure for each amendment. Applicants should point to the page and line numbers of the application corresponding to each amendment, and provide any statements that might help to identify support for the claimed invention (e.g., if the amendment is not supported in ipsis verbis, clarification on the record may be helpful). Should the Applicants present new claims, Applicants should clearly identify where support can be found in the disclosure. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAYLA SOROUSH whose telephone number is (571)272-5008. The examiner can normally be reached on Monday thru Friday; 8:30 AM to 5:00 PM EST. 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:/Awww.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, James Henry 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. /LAYLA SOROUSH/ Primary Examiner, Art Unit 1622
Read full office action

Prosecution Timeline

Nov 16, 2021
Application Filed
Mar 17, 2025
Response after Non-Final Action
Apr 24, 2025
Non-Final Rejection mailed — §103
Jul 24, 2025
Response Filed
Nov 05, 2025
Final Rejection mailed — §103
Feb 05, 2026
Request for Continued Examination
Feb 09, 2026
Response after Non-Final Action
Jun 17, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12648919
ANTICOCCIDIAL COMPOSITION COMPRISING COUMARIC ACID AND USE THEREOF
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Patent 12636262
PROCESS FOR THE PREPARATION OF ANTHRAQUINONE TOPICAL FORMULATION
4y 4m to grant Granted May 26, 2026
Patent 12622908
TOPICAL FORMULATION FOR A JAK INHIBITOR
4y 5m to grant Granted May 12, 2026
Patent 12622921
STABLE FORMULATIONS COMPRISING THIOTEPA
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
40%
Grant Probability
84%
With Interview (+43.0%)
3y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 884 resolved cases by this examiner. Grant probability derived from career allowance rate.

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