Prosecution Insights
Last updated: April 19, 2026
Application No. 18/019,391

FRICTION ADJUSTING MATERIAL, FRICTION MATERIAL COMPOSITION, FRICTION MATERIAL, AND FRICTION MEMBER

Final Rejection §103
Filed
Feb 02, 2023
Examiner
NERANGIS, VICKEY M
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Otsuka Chemical Co. Ltd.
OA Round
2 (Final)
56%
Grant Probability
Moderate
3-4
OA Rounds
3y 1m
To Grant
85%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allow Rate
649 granted / 1152 resolved
-8.7% vs TC avg
Strong +28% interview lift
Without
With
+28.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
69 currently pending
Career history
1221
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
47.7%
+7.7% vs TC avg
§102
17.0%
-23.0% vs TC avg
§112
22.6%
-17.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1152 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 . Response to Amendment The claim objection is withdrawn in light of applicant’s amendment filed on 9/18/2025. 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 § 103 Claims 1-13 are rejected under 35 U.S.C. 103 as being unpatentable over Kamada (WO 2018/164028, US 2020/0002184, English-language equivalent) in view of Aga (WO 2018110563, US 2020/003268 English-language equivalent). The rejection is adequately set forth in paragraph 3 of Office action mailed on 9/18/2025. Response to Arguments Applicant's arguments filed 12/9/2025 have been fully considered but they are not persuasive. Specifically, applicant argues that the amount of chlorine taught by Aga in an iron-based friction modifier would not be expected to give a chloride dissolution value for a layered titanate of Kamada. While the examiner agrees that the iron-based friction modifier of Aga does not have layers and therefore would not provide the same chloride dissolution value, it is the examiner’s position that the amount of chlorine in Aga’s iron-based friction modifier is equivalent to what is being measured by the chloride dissolution test for layered titanate. In other words, the amount of chlorine taught by Aga of 150 ppm or less is directly relevant and applicable to the advantageous amount of chlorine in Kamada’s titanate. Therefore, one of ordinary skill in the art would control the amount of chlorine in the layered titanate friction modifier of Kamada. Applicant also argues that the data of the specification shows an unexpected effect when using a titanate compound having 1-300 ppm chlorine content. The data has been fully considered, however, it is insufficient to establish unexpected results because the data is expected as disclosed by Aga. Aga teaches that a chlorine content of 150 ppm or less reduces corrosion and increases braking property over time. The examples of the specification (including Comparative Example 1 with chlorine content of 0.1 ppm) show what is expected, i.e., that reducing the amount of chlorine in the friction modifier provides for less rust (i.e. corrosion). 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

Feb 02, 2023
Application Filed
Sep 16, 2025
Non-Final Rejection — §103
Dec 09, 2025
Response Filed
Jan 27, 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

3-4
Expected OA Rounds
56%
Grant Probability
85%
With Interview (+28.5%)
3y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 1152 resolved cases by this examiner. Grant probability derived from career allow rate.

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