Prosecution Insights
Last updated: April 19, 2026
Application No. 18/245,837

FIBER-FORMING COMPOSITION

Non-Final OA §102§103
Filed
Mar 17, 2023
Examiner
VETERE, ROBERT A
Art Unit
1712
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kao Corporation
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
3y 6m
To Grant
74%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
530 granted / 872 resolved
-4.2% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
49 currently pending
Career history
921
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
60.7%
+20.7% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
16.9%
-23.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 872 resolved cases

Office Action

§102 §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 . Election/Restrictions Claims 4-14 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 12/16/25. Applicant's election with traverse of Group I in the reply filed on 12/16/25 is acknowledged. The traversal is on the ground(s) that both inventions require the claimed c1/c ratio and that Yoshino (WO2019156146) fails to teach this ratio. This is not found persuasive because the ratio of c1/c is broadly recited as 0.6 or more, which includes a ratio of 1. Yoshino teaches that dimethylpolysiloxane (which has the claimed properties of c1) is the only c component present (p. 4, e.g.) and, thus, anticipates a c1/c ratio of 1 wherein dimethylpolysiloxane is the only component in c (e.g., if the mass of c is 10g and c1 accounts for all 10g of that total, c1/c or 10g/10g would equal 1). The requirement is still deemed proper and is therefore made FINAL. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1 and 2 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Yoshino (WO2019156146, machine translation). Claims 1 and 2: Yoshino teaches a method for forming a coating film on skin by electrostatically spraying a composition (Abst.), the composition comprising the following components: (a) a film formable polymer (Abst.; top of p. 3); (b) an alcohol (i.e. claimed volatile substance) (Abst.; middle of p. 3); and (c) a plasticizer, such as dimethylpolysiloxane (Abst.; top through middle third of p. 4). Dimethylpolysiloxane is an oil having a surface tension at 25˚C of 25 mN/m or less and is liquid at 25˚C (see, e.g., applicant’s specification at Table 2 which indicates that dimethylpolysiloxane has the properties of required for c1). With respect to the claimed c1/c ratio, Yoshino teaches that dimethylpolysiloxane is the only component in c, which would yield a c1/c ratio of 1. 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 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 3 is rejected under 35 U.S.C. 103 as being unpatentable over Yoshino in light of Alexander et al. (US 5,996,855). Claim 3: Yoshino fails to discuss the spray rate in a volume per time context. Alexander teaches an electrostatic spray process and explains that the discharge rate is determined by the amount of material needed per unit time to coat the substrate to its desired thickness (Abst.; 1:50-62). Where 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. MPEP § 2144.05(II)(A). Thus, it would have been obvious to one of ordinary skill at the time of filing to have selected a spray rate of 0.12-2 mL/min depending on the desired coating thickness with the predictable expectation of success. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Robert A Vetere whose telephone number is (571)270-1864. The examiner can normally be reached M-F 7:30-4:00 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://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Michael Cleveland can be reached at (571) 270-1034. 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. /ROBERT A VETERE/ Primary Examiner, Art Unit 1712
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Prosecution Timeline

Mar 17, 2023
Application Filed
Jan 14, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600678
METHOD FOR CHARGING OPEN PORES IN CERAMIC MATRIX COMPOSITE, AND CERAMIC MATRIX COMPOSITE
2y 5m to grant Granted Apr 14, 2026
Patent 12604657
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2y 5m to grant Granted Apr 14, 2026
Patent 12590181
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Patent 12590035
METHOD FOR MANUFACTURING AN ABRADABLE LAYER
2y 5m to grant Granted Mar 31, 2026
Patent 12583793
CERAMIC SLATE WITH COLORED JADE EFFECT AND PREPARATION METHOD THEREOF
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
61%
Grant Probability
74%
With Interview (+13.4%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 872 resolved cases by this examiner. Grant probability derived from career allow rate.

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