Prosecution Insights
Last updated: April 19, 2026
Application No. 17/912,400

METHOD FOR PRODUCING FULLERENE-DERIVATIVE-CONTAINING RESIN COMPOSITION, FULLERENE-DERIVATIVE-CONTAINING RESIN COMPOSITION OBTAINED FROM SAME, RESIN PAINT, RESIN COATING, AND ENAMEL WIRE

Final Rejection §103
Filed
Sep 16, 2022
Examiner
IMANI, ELIZABETH MARY COLE
Art Unit
1789
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Totai Co. Ltd.
OA Round
4 (Final)
33%
Grant Probability
At Risk
5-6
OA Rounds
4y 7m
To Grant
58%
With Interview

Examiner Intelligence

Grants only 33% of cases
33%
Career Allow Rate
311 granted / 930 resolved
-31.6% vs TC avg
Strong +25% interview lift
Without
With
+25.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 7m
Avg Prosecution
77 currently pending
Career history
1007
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
73.5%
+33.5% vs TC avg
§102
4.9%
-35.1% vs TC avg
§112
5.5%
-34.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 resolved cases

Office Action

§103
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 . 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. 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. Claim(s) 10-16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Dahlund et al, WO 94/10423 in view of Kokubo et al, U.S. Patent Application Publication No. 2016/0009620. Dahlund teaches adding C60 carbon fullerenes in amounts of 0.01-15 percent by weight, (see page 2, lines 10-17), to enamel coatings for wires, (see example 5, page 5), in order to provide improved breakdown resistance to electrical load and increased resistance to oxidative breakdown, (see page 6, lines 1-4. The range of 0.01-15 satisfies the values in new claims 15 and 16. Dahlund differs from the claimed invention because it does not teach the claimed fullerene derivative. However, Kokubo teaches that fullerene derivatives such as those having a general formula as claimed can be readily incorporated into polymeric resins by first adding them to a solvent and then adding them to the polymeric resins, and that the fullerenes are useful in electrical and electronic equipment, building materials, molding, etc. See paragraph 0101. Therefore, it would have been obvious to have employed the particular fullerene derivatives in a solvent as taught by Kokubo in view of their art recognized suitability for this intended purpose. Once the composition of Dahlund was modified by Kokubo, it is reasonable to expect that it would have the claimed properties of dielectric breakdown since like materials must have like properties. With regard to the order of steps, the selection of any order of steps is prima facia obvious in the absence of new or unexpected results. Applicant's arguments filed 11/18/25 have been fully considered. Applicant argues that Dahlund does not teach the claimed amount of fullerenes and that in the examples Dahlund uses a higher amount than the claimed amount. However, Dahlund teaches that the purpose of incorporating the fullerenes is to improve resistance to breakdown. Dahlund teaches adding the fullerenes to enamel coatings for wires. Dahlund teaches a range of 0.01-15 percent by weight. Therefore, one of ordinary skill would have been able to select the amount of fullerenes which provided sufficient protection when added to an enamel wire coating through the process of routine experimentation within the range that Dahlund teaches. Clearly the purpose of adding the fullerenes is to improve resistance to breakdown. Additionally the disclosure of Dahlund is not limited to the examples. One of ordinary skill would therefore consider the entirety of the teachings and ranges of Dahlund to arrive at the optimum amounts within the ranges taught by Dahlund using no more than routine skill in the art. With regard to the combination of Kokubo with Dahlund, Applicant argues that the mechanics of improving heat resistance is different from that of dielectric breakdown lifetime. However, Dahlund already teaches that adding the fullerenes to enamel wire coatings improves their resistance to breakdown. Kokubo teaches that the particularly claimed fullerenes are useful for providing protection to electrical and electronic components. Therefore, one of ordinary skill would have had a reasonable expectation that the particular fullerenes disclosed by Kokubo would have been useful to add to enamel wire coatings to improve their resistance to breakdown. Applicant argues that the fullerenes in Dahlund are different than those disclosed in Kokubo. However, Kokubo discloses that the particularly claimed fullerenes are also useful as additives for electrical and electronic components which provides at least a reasonable expectation that the fullerenes of Kokubo would also provide protection as taught by Dahlund. THIS ACTION IS MADE FINAL. 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 ELIZABETH M IMANI whose telephone number is (571)272-1475. The examiner can normally be reached Monday-Wednesday 7AM-7:30; Thursday 10AM -2 PM. 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, Marla McConnell can be reached at 571-270-7692. 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. /ELIZABETH M IMANI/Primary Examiner, Art Unit 1789
Read full office action

Prosecution Timeline

Sep 16, 2022
Application Filed
Aug 29, 2024
Non-Final Rejection — §103
Nov 19, 2024
Response Filed
Mar 10, 2025
Final Rejection — §103
May 05, 2025
Response after Non-Final Action
Jun 03, 2025
Notice of Allowance
Jun 03, 2025
Response after Non-Final Action
Jun 16, 2025
Response after Non-Final Action
Jul 23, 2025
Request for Continued Examination
Jul 24, 2025
Response after Non-Final Action
Aug 05, 2025
Applicant Interview (Telephonic)
Aug 06, 2025
Examiner Interview Summary
Sep 19, 2025
Non-Final Rejection — §103
Nov 18, 2025
Response Filed
Feb 18, 2026
Final Rejection — §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

5-6
Expected OA Rounds
33%
Grant Probability
58%
With Interview (+25.1%)
4y 7m
Median Time to Grant
High
PTA Risk
Based on 930 resolved cases by this examiner. Grant probability derived from career allow rate.

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