Prosecution Insights
Last updated: April 19, 2026
Application No. 19/339,197

STRUCTURALLY DIVERSE, STABLE, AND RADIATION-PROTECTIVE PARTICLE MATRIX SUNSCREEN AND COSMETIC COMPOSITIONS AND RELATED METHODS

Non-Final OA §103
Filed
Sep 24, 2025
Examiner
HOLLOMAN, NANNETTE
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Lcs Advanced Solutions LLC
OA Round
1 (Non-Final)
60%
Grant Probability
Moderate
1-2
OA Rounds
2y 11m
To Grant
83%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allow Rate
469 granted / 778 resolved
At TC average
Strong +23% interview lift
Without
With
+22.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
19 currently pending
Career history
797
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
52.6%
+12.6% vs TC avg
§102
18.9%
-21.1% vs TC avg
§112
18.2%
-21.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 778 resolved cases

Office Action

§103
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 . Claim Objections Claims 1, 12 and 18 are objected to because of the following informalities: the claims recite the abbreviation “PMMA”, which is not used in any dependent claims. There the limitation should be deleted. Appropriate correction is required. Claim Rejections - 35 USC § 103 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 (i.e., changing from AIA to pre-AIA ) 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. 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 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. Claim(s) 2-10 are rejected under 35 U.S.C. 103 as being unpatentable over Gray et al. (US Patent Pub. 2012/0258055, disclosed by applicant) in view of McCormick et al. (US Patent Pub. 2010/0310871, disclosed by applicant). Gray et al. disclose a composition and method for protecting a keratinous substrate from harmful UV rays by providing a mineral sunscreen composition with high SPF properties that is stable and avoids re-agglomeration of sunscreen actives thereby providing a non-whitening and cosmetically elegant composition (Abstract and [0004]). Gray et al. disclose the composition comprises inorganic sunscreen actives, such as iron oxide, titanium dioxide or zinc oxide at a concentration of 0.1% to about 50% by weight ([0061], [0062], and [0097]). Gray et al. disclose the composition comprises hydroxyapatite at a concentration of 0.1% to about 30% ([0039] and [0044]), which meets the limitation of “therapeutically effective amount” as described in the instant specification of about 0.7-1.25% of an SPF booster that provides a SPF of at least 30. Gray et al. disclose the composition comprises silicone oils, such as cyclopentasiloxane in an amount of about 1% to about 60% ([0117] and [0183]) Gray et al. disclose the composition comprises hectorite clay at a concentration of from about 0.1% to about 1.25% by weight ([0036] and [0037]). The composition of Gray et al. is free of butyloctyl salycilate, styrene/acrylates copolymer, polymethyl methacrylate of derivatives thereof, tropolone, polyethylene glycol compounds and organic sunscreen filters. Gray et al. disclose examples have significantly greater absorbance through wavelength rage of about 290 nm through about 390 nm (FIG. 1, [0234]). Gray et al. disclose a W/O composition comprising polyglyceryl isostearate, which meets the limitation of polyglyceryl fatty acid ester compound, at a concentration of 1% to about 8% ([0104] and [0109]). Gray et al. differs from the instant claims insofar as they do not disclose wherein the zinc oxide is a mesoporous zinc oxide. McCormick et al. disclose mesoporous zinc oxide powder that are of a sufficiently large size to not raise concerns about product safety or stability, that when dispersed in a transparent matrix provide substantial visible transparency combined with minimal or no whitening ([0009]). McCormick et al. disclose the mesoporous particles range in size from 0.2 to 10 microns, which meets the limitation of non-nano of the instant claims ([0052]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have used mesoporous zinc oxide as the zinc oxide of Gray et al. motivated by the desire to provide a powder that are of a sufficiently large size to not raise concerns abut product safety or stability, that when dispersed in a transparent matrix provide substantial visible transparency combined with minimal or no whitening as taught by McCormick. Claim 11 is rejected under 35 U.S.C. 103 as being unpatentable over Gray et al. (US Patent Pub. 2012/0258055, disclosed by applicant) in view of McCormick et al. (US Patent Pub. 2010/0310871, disclosed by applicant) and Kuehnle et al. (US Patent Pub. 20200232003). Gray in view of McCormick is discussed above and differs from the instant claims insofar as they do not disclose the diatomaceous algae materials of instant claim 11. Kuehnle et al. disclose compositions, including sunscreens, comprising microalgal cells including diatoms, i.e. Cyclotella, Frafilaria, Gomphonema, and Navivula (Abstract and [0108]). Kuehnle et al. disclose microalgal cells increase SPF of sunscreen compositions and also provide moisturizing, hydrating, softening, smoothing, rejuvenating, soothing, protecting and restoring the skin ([0216] and reference claim 33). It would have been obvious to one of ordinary skill in the art before the effective filing date of he claimed invention to have included the claimed diatomaceous algae materials to the composition of Gray in view of McCormick motivated by the desire to increase the SPF of the sunscreen composition as taught by Kuehnle. Claim(s) 12-23 are rejected under 35 U.S.C. 103 as being unpatentable over Gray et al. (US Patent Pub. 2012/0258055, disclosed by applicant) in view of McCormick et al. (US Patent Pub. 2010/0310871, disclosed by applicant) and Paulucci et al. (US Patent Pub. 20210059911, disclosed by applicant). Gray in view of McCormick is discussed above and differs from the instant claims insofar as they do not disclose a composition comprising calcium sodium borosilicate or dimethicone and acylates/dimethicone copolymer. Paulucci et al. disclose a sunscreen composition comprising dimethicone (and) acrylates/dimethicone copolymer at a concentration of about 0.1 to 5 wt. % and calcium/sodium borosilicate ([0069] and [0194]). It is prima facie obviousness to select a known material based on its suitability for its intended use. Also, established precedent holds that it is generally obvious to add known ingredients to known compositions with the expectation of obtaining their known function. MPEP 2144.07. Therefore, it would have been obvious to have used ingredients known for sunscreen compositions. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to NANNETTE HOLLOMAN whose telephone number is (571)270-5231. The examiner can normally be reached Monday-Friday 9am-6pm. 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, Sahana S. Kaup can be reached at 571-272-6897. 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. /NANNETTE HOLLOMAN/Primary Examiner, Art Unit 1612
Read full office action

Prosecution Timeline

Sep 24, 2025
Application Filed
Nov 18, 2025
Response after Non-Final Action
Dec 29, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594224
Oral Care Compositions and Methods of Use
2y 5m to grant Granted Apr 07, 2026
Patent 12582588
SOLID COSMETIC COMPOSITION FOR BLOCKING ULTRAVIOLET RADIATION HAVING WATER RESISTANCE AND CLEANSING PROPERTIES
2y 5m to grant Granted Mar 24, 2026
Patent 12582587
SUNSCREEN COMPOSITION AND METHODS OF PROTECTION FROM ULTRAVIOLET AND VISIBLE LIGHT
2y 5m to grant Granted Mar 24, 2026
Patent 12576027
DICLOFENAC TOPICAL FORMULATION WITH A HIGH ABSORPTION RATE
2y 5m to grant Granted Mar 17, 2026
Patent 12576153
PRESERVATIVE SYSTEMS
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
60%
Grant Probability
83%
With Interview (+22.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 778 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month