Prosecution Insights
Last updated: May 29, 2026
Application No. 18/246,191

ACOUSTICAL BONDING OF EFFECT PIGMENTS

Final Rejection §102§103
Filed
Mar 22, 2023
Priority
Sep 24, 2020 — provisional 63/082,544 +1 more
Examiner
NERANGIS, VICKEY M
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Ppg Industries Ohio Inc.
OA Round
2 (Final)
56%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
85%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allowance Rate
654 granted / 1161 resolved
-8.7% vs TC avg
Strong +29% interview lift
Without
With
+28.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
51 currently pending
Career history
1222
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
81.1%
+41.1% vs TC avg
§102
5.3%
-34.7% vs TC avg
§112
3.3%
-36.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1161 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 . Response to Amendment All outstanding rejections, except for those maintained below, are withdrawn in light of applicant’s amendment filed on 1/21/2026. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior office action. No new grounds of rejection are set forth below. Thus, the following action is properly made final. Claim Rejections - 35 USC § 102/103 Claims 16-20 are rejected under 35 U.S.C. 102(a)(1) as anticipated by or, in the alternative, under 35 U.S.C. 103 as obvious over Ferencz (US 2006/0189718). The rejection is adequately set forth in paragraph 3 of Office action mailed on 9/22/2025 and is incorporated here by reference. Claim Rejections - 35 USC § 103 Claims 1, 2, and 4-21 are rejected under 35 U.S.C. 103 as being unpatentable over Ferencz (US 2006/0189718) in view of Yang (US 8,883,264). The rejection is adequately set forth in paragraph 4 of Office action mailed on 9/2/2025 and is incorporated here by reference. Response to Arguments Applicant's arguments filed 1/21/2026 have been fully considered but they are not persuasive. Specifically, applicant argues that Ferencz does not disclose the claimed powder coating composition because the process in the instant product-by-process claims requiring mixing with acoustic energy and heating to a transition temperature provides for a tangible benefit, i.e., higher performing effect pigment, as shown by the examples of the specification. The examples have been fully considered, but they are sufficient to distinguish over Ferencz for two reasons. First, the examples of the specification do not directly compare to Ferencz which does not teach a dry mix method or a high shear mixing method (mixing method used in comparative examples in Table 5). Rather, Ferencz binding resinous (polymeric binder) particles to metallic flakelike effect pigments by sufficiently heating the mixture at least 2°F higher than the glass transition temperature (reads on claimed step of heating to a transition temperature) to just soften the resinous particles to adhere the flake-like effect pigments. Case law holds that comparative showings must compare the claimed subject matter with the closest prior art to be effective. See In re Burckel, 592 F.2d 1175, 1179, 201 USPQ 67, 71 (CCPA 1979). It is noted that Ferencz teaches away from high shearing mixing in paragraph 0007. Second, even had the examples shown criticality for the claimed method, the data is not reasonably commensurate in scope with the scope of the claims. Case law holds that evidence is insufficient to rebut a prima facie case if not commensurate in scope with the claimed invention. In re Grasselli, 713 F.2d 731, 741, 218 USPQ 769, 777 (Fed. Cir. 1983). Specifically, the inventive examples (details in Table 4) are prepared by a method is that is not representative of claimed process of “mixed with acoustic energy and heated to a transition temperature.” It is unclear under which acoustically mixing parameters are critical for improved performance. Applicant also argues that Ferencz fails to disclose an acoustic energy mixing step and is not open to the acoustic mixing step taught by Yang with an expectation of improving performance. Ferencz and Yang are both drawn to powder coating compositions comprising solid additives. While Ferencz does not teach acoustic energy mixing, it clearly teaches that high shear mixing should be avoided because high shear destroys the structure of the flakelike effect pigments (paragraph 0007). Yang teaches that aerogel particles are friable and prone to breakage and therefore applying an acoustic mixer allows for gentle mixing with the polymer powder to separate loosely aggregated particles and maintain intact aerogel particles (col. 11, lines 38-42). Given that they are both within the same field of endeavor of preparing homogeneous coatings and providing gentle mixing additives prone to breakage, the combination of references is completely appropriate. Finally, Applicant argues that Yang discloses aerogel particles and there is not applicable to a powder coating composition comprising flake-like metallic effect pigments. While Yang does not disclose all the features of the present claimed invention, it is used as teaching reference, and therefore, it is not necessary for this secondary reference to contain all the features of the presently claimed invention, In re Nievelt, 482 F.2d 965, 179 USPQ 224, 226 (CCPA 1973), In re Keller 624 F.2d 413, 208 USPQ 871, 881 (CCPA 1981). Rather this reference teaches a certain concept, and in combination with the primary reference, discloses the presently claimed invention. Specifically, Yang teaches that aerogel particles are friable and prone to breakage and therefore using an acoustic mixer allows for gentle mixing and maintaining intact aerogel particles (col. 11, lines 38-42). Conclusion THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to VICKEY NERANGIS whose telephone number is (571)272-2701. The examiner can normally be reached 8:30 am - 5:00 pm EST, Monday - Friday. 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, Joseph Del Sole can be reached at (571)272-1130. 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. /VICKEY NERANGIS/Primary Examiner, Art Unit 1763 vn
Read full office action

Prosecution Timeline

Mar 22, 2023
Application Filed
Sep 22, 2025
Non-Final Rejection mailed — §102, §103
Jan 21, 2026
Response Filed
Mar 17, 2026
Final Rejection mailed — §102, §103 (current)

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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
56%
Grant Probability
85%
With Interview (+28.9%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1161 resolved cases by this examiner. Grant probability derived from career allowance rate.

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