Prosecution Insights
Last updated: October 01, 2026
Application No. 18/250,384

Films and Oral Care Compositions Comprising Same

Non-Final OA §103§DP
Filed
Apr 25, 2023
Priority
Oct 30, 2020 — CN 202011200270.9 +1 more
Examiner
ROBERTS, LEZAH
Art Unit
1612
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Colgate-Palmolive Company
OA Round
3 (Non-Final)
48%
Grant Probability
Moderate
3-4
OA Rounds
8m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 48% of resolved cases
48%
Career Allowance Rate
374 granted / 772 resolved
-11.6% vs TC avg
Strong +35% interview lift
Without
With
+35.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 1m
Avg Prosecution
51 currently pending
Career history
844
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
52.8%
+12.8% vs TC avg
§102
14.7%
-25.3% vs TC avg
§112
16.9%
-23.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 772 resolved cases

Office Action

§103 §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 . Applicants' arguments Request for Continued Examination, filed June 29, 2026, have been fully considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn. The following rejections and/or objections are either reiterated or newly applied. They constitute the complete set presently being applied to the instant application. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims Claim Rejections - 35 USC § 103 – Obviousness (Maintained Rejection) Claims 61-62, 65-66, 68, 70 and 72-79 are rejected under 35 U.S.C. 103 as being unpatentable over Boyd et al. (WO 2005058265). Boyd et al. disclose oral and personal care composition. A composition comprising a film or a plurality of film fragments entrained in a carrier is disclosed (Abstract). The films comprise a function material. The films comprises clays, waxes and polymers (paragraph 0016). Water soluble polymers among those useful herein include cellulose ethers, methacrylates, polyvinylpyrrolidone, and mixtures thereof. In one embodiment, the polymer is a cellulose ether, including those selected from the group consisting of hydroxyalkyl cellulose polymers such as hydroxypropyl methyl cellulose (HPMC), hydroxypropyl cellulose, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, and mixtures thereof. The hydroxypropyl methyl cellulose that may be used includes methylcellulose E5 and methyl cellulose E50 (Example 8, meeting instant claim 65). Methyl cellulose comprises 40% by weight of a film (Example 1). Other polymers among those useful herein include polyvinylpyrrolidone, cross-linked polyvinyl pyrrolidone, polyvinylpyrrolidone-vinyl acetate copolymer, polyvinyl alcohol, polyacrylic acid, poly acrylate polymer, cross-linked polyacrylate polymer, cross-linked polyacrylic acid (e.g., Carbopol®), polyethylene oxide, polyethylene glycol, poly vinyl alkyl ether-maleic acid copolymer (such as Gantrez®) and carboxy vinyl polymer; natural gums such as sodium alginate, carrageenan, xanthan gum, gum acacia, arabic gum, guar gum, pullulan, agar, chitin, chitosan, pectin, karaya gum, zein, hordein, gliadin, locust bean gum, tragacanth and other polysaccharides; starches such as maltodextrin, amylose, high amylose starch, corn starch, potato starch, rice starch, tapioca starch, pea starch and sweet potato starch (paragraph 0018). The film comprises functional materials such as calcium pyrophosphate (paragraph 0047) and zinc citrate (paragraph 0048). The carrier includes toothpaste (paragraph 0032). The film fragments have a thickness of from about 1 mil (thousandth of an inch, 25.4 microns) to about 3 mils (76.2 microns) (paragraph 0028). A film comprises 9.55% methylcellulose E5, 4% cornstarch, carrageenan and solids (Example 8). The amount of titanium dioxide meet substantially free. The reference is not anticipatory insofar as it does not exemplify all the components recited by the instant claims. However, generally, it is prima facie obvious to select a known material for incorporation into a composition, based on its recognized suitability for its intended use. See MPEP 2144.07. It would have been obvious to one of ordinary skill in the art prior to filing the instant application to have added calcium pyrophosphate or a zinc salt to the films of Boyd et al. as a particulate, and polyacrylic acid as a polymer because it is suggested by Boyd and for their recognized suitability and therapeutic functions. In regards to claim 75-76, the film of Boyd et al. comprises substantially the same components as that of the instant claims, and therefore one would reasonably conclude that the composition of the reference would have substantially the same properties of the breaking strength and; remaining substantially undissolved after about 2 months at 40 degrees C and after about 1 month at 60 degrees C as that of the instant claims. Response to Arguments The Examiner submits that Boyd discloses calcium salts such as calcium pyrophosphate may be added to the films as a polishing agent. The refractive index would be a property of the component. Therefore, when calcium pyrophosphate is added to the film, it would have substantially the same refractive index. One would further conclude that when using calcium pyrophosphate, the film would take on an opaque appearance. In regard to the titanium dioxide and titanium dioxide coated mica being the colorant, these components are not essential or required to be incorporated into the disclosed film. Therefore, although Boyd does not specifically say that the polishing agent causes opacity, incorporation of calcium pyrophosphate would cause the film to be opaque due to their appearance. In regards to omitting the titanium dioxide, the films would be opaque if an opaque powder, such as calcium pyrophosphate, was added to the films. Therefore, the function in the film would be retained. In regards to the alleged unexpected results, Boyd discloses ratios that touch that of the instant claims. Therefore, one would reasonably conclude that they would have substantially the same properties. Further, even if the results were indeed unexpected, the claims are not commensurate in scope with the results. The claims recite natural gums and the examples in the instant specification disclose starch, calcium pyrophosphate and a specific ratio of 2.5. It would appear the components and their mixtures are critical to achieving a film. Therefore, it is not clear if varying the type of components outside those disclosed in the examples would lead to similar results. Therefore the rejection is maintained. Obvious-Type Double Patenting Claims 61-62, 65-66, 68, 70 and 72-79 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 66-85 of copending Application No. 18/250,421 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the claims are coextensive insofar as both sets of claims recite a film comprising a polymer, a gum and a particulate, wherein the film does not comprise titanium dioxide. The instant claims differ the copending claims insofar as the copending claims recite polymer and not clays or wax a long with polymers as an option. However, the instant claims are obvious over the copending claims. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Response to Arguments Applicants respectfully defer these issues until the application is otherwise in condition for allowance. Since this has not occurred, the rejection is maintained. Conclusion Claims 61-62, 65-66, 68, 70 and 72-79 are rejected. No claims allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LEZAH ROBERTS whose telephone number is (571)272-1071. The examiner can normally be reached Monday-Friday 11:00-7:30. 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, Sahana 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. /LEZAH ROBERTS/ Primary Examiner, Art Unit 1612
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Prosecution Timeline

Apr 25, 2023
Application Filed
Sep 10, 2025
Non-Final Rejection mailed — §103, §DP
Dec 11, 2025
Response Filed
Mar 27, 2026
Final Rejection mailed — §103, §DP
Jun 29, 2026
Request for Continued Examination
Jun 30, 2026
Response after Non-Final Action
Jul 15, 2026
Non-Final Rejection mailed — §103, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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CATIONIC MATERIAL FOR TOOTH DESENSITIZATION, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
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Oral Care Compositions Comprising Hops Beta Acids And Fluoride Ions
1y 2m to grant Granted Aug 11, 2026
Patent 12697288
COMPOSITION FOR ORAL CAVITY
5y 3m to grant Granted Aug 04, 2026
Patent 12691045
Rheological Solid Composition for Use in Shaving
5y 3m to grant Granted Jul 28, 2026
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PREPARATION AND EFFICACY OF TOOTH WHITENING TABLET INCLUDING SHMP
5y 0m to grant Granted Jun 23, 2026
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
48%
Grant Probability
84%
With Interview (+35.1%)
4y 1m (~8m remaining)
Median Time to Grant
High
PTA Risk
Based on 772 resolved cases by this examiner. Grant probability derived from career allowance rate.

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