Prosecution Insights
Last updated: April 19, 2026
Application No. 18/039,875

METHOD OF TRANSFERRING PARTICLES TO A COATING SURFACE

Non-Final OA §103
Filed
Jun 01, 2023
Examiner
VETERE, ROBERT A
Art Unit
1712
Tech Center
1700 — Chemical & Materials Engineering
Assignee
3M Company
OA Round
3 (Non-Final)
61%
Grant Probability
Moderate
3-4
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

§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 . Continued Examination Under 37 CFR 1.114 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 10/6/25 has been entered. Response to Arguments Applicant persuasively argues that the cited art fails to teach the newly added limitation. A new rejection is presented below in response to this amendment. Claim Rejections - 35 USC § 103 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 17 and 18 are rejected under 35 U.S.C. 103 as being unpatentable over Yang et al. (US 2006/0074172) in light of David et al. (US 2016/0370506). Claim 17: Yang teaches an antireflective hardcoat for a display (Abst.; ¶ 0014) comprising: a glass substrate (¶ 0061) coated with a layer of cured resin which has silica nanoparticles concentrated at an upper surface of the resin (¶¶ 0028-0029; Figs. 1, 5). Yang further teaches that the silica nanoparticles form a continuous self-assembled monolayer (Fig. 1; ¶¶ 0044-0045). Yang, however, fails to teach that the nanoparticles are one of the claimed materials. David, like Yang, teaches an antireflective hardcoat comprising oxide nanoparticles (Abst.; ¶ 0012) and explains that zirconia can be selected as the nanoparticle in place of silica (¶ 0045). The simple substitution of one known element for another to obtain predictable results is prima facie obvious. MPEP § 2143. Thus, it would have been obvious to one of ordinary skill at the time of filing to have selected zirconia in place of silica in Yang with the predictable expectation of success. Claim 18: Yang teaches the same materials (i.e. (meth)acrylate resin and silica nanoparticles (¶¶ 0028-0029, 0041) in the same configuration as those which applicant claims to possess the claimed delta haze properties. Therefore, this property is considered inherent in the hardcoat of Yang. Alternatively, Yang teaches that the haze of the coating can be adjusted by adjusting the recipe and process conditions (¶0067). 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 delta haze of less than 5 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
Read full office action

Prosecution Timeline

Jun 01, 2023
Application Filed
Dec 18, 2024
Non-Final Rejection — §103
Jun 23, 2025
Response Filed
Jul 30, 2025
Final Rejection — §103
Oct 01, 2025
Response after Non-Final Action
Oct 06, 2025
Request for Continued Examination
Oct 09, 2025
Response after Non-Final Action
Dec 01, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

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Patent 12590035
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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
61%
Grant Probability
74%
With Interview (+13.4%)
3y 6m
Median Time to Grant
High
PTA Risk
Based on 872 resolved cases by this examiner. Grant probability derived from career allow rate.

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