Prosecution Insights
Last updated: May 29, 2026
Application No. 18/855,045

GREASE COMPOSITION

Final Rejection §103
Filed
Oct 08, 2024
Priority
Apr 11, 2022 — JP 2022-065105 +1 more
Examiner
VASISTH, VISHAL V
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kyodo Yushi Co. Ltd.
OA Round
3 (Final)
72%
Grant Probability
Favorable
4-5
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
980 granted / 1355 resolved
+7.3% vs TC avg
Strong +33% interview lift
Without
With
+33.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
40 currently pending
Career history
1393
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
60.5%
+20.5% vs TC avg
§102
5.0%
-35.0% vs TC avg
§112
0.3%
-39.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1355 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicants’ submission filed on 4/13/2026 has been entered. Response to Amendment Applicants’ response filed 4/13/2026 did not include any claim amendments. Applicants’ arguments in light of the Affidavit filed 4/3/2026 signed by Hisayuki Osawa overcome the 35 USC 102 rejection over Saita and the 35 USC 103 rejection over Yoshinari from the office action mailed 10/16/2025; therefore, these rejections are withdrawn. A new ground of rejection is set forth below. 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. Claims 1-6 are rejected under 35 U.S.C. 103 as being unpatentable over Cha et al., Korean Publication No. KR20040011235A 9hereinafter referred to as Cha). Regarding claims 1-6, Cha discloses a grease composition comprising; 10-25 wt% of a diurea compound formed by reacting MDI and octadecylamine as the sole thickener (as recited in claim 1 and reads on claim 3) (Para. [0020]-[0021]), a major concentration of a mineral base oil having a KV100 of 6-10 cSt (as recited in claim 1 and reads on claims 4-6) (Para. [0015] and see Examples) wherein the temperature the base grease is heated to is 195°C (which reads on the roll stability test limitation of claim 1 per the instant specification and the Affidavit filed 4/13/2026 by applicants). Cha discloses all the limitations discussed above but does not explicitly disclose the worked penetration as recited in claim 1, nor the limitations of claim 2. It is the position of the examiner that as Cha discloses the grease components discussed above that Cha would therefore inherently read on the limitations of claims 1-2. Response to Arguments Applicants’ arguments filed 4/13/2026 regarding claims 1-6 have been fully considered and are moot as the rejections from the previous office action have been withdrawn as discussed above. It is the position of the examiner that the reference discussed above adequately reads on the claims as instantly recited. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VISHAL V VASISTH whose telephone number is (571)270-3716. The examiner can normally be reached M-F 9:00-4:30 and 7:00-10:00p. 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, Prem Singh can be reached at 5712726381. 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. /VISHAL V VASISTH/Primary Examiner, Art Unit 1771
Read full office action

Prosecution Timeline

Show 1 earlier event
May 30, 2025
Non-Final Rejection mailed — §103
Sep 30, 2025
Response Filed
Oct 16, 2025
Final Rejection mailed — §103
Apr 13, 2026
Request for Continued Examination
Apr 13, 2026
Response after Non-Final Action
Apr 16, 2026
Response after Non-Final Action
Apr 21, 2026
Examiner Interview (Telephonic)
Apr 23, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12630775
FUEL ADDITIVE COMPOSITION AND RELATED METHODS
2y 3m to grant Granted May 19, 2026
Patent 12630778
DETERGENT- FREE AND LOW- ASH LUBRICATING COMPOSITION
2y 5m to grant Granted May 19, 2026
Patent 12624305
CONVEYOR LUBRICANTS INCLUDING EMULSION OF A LIPOPHILIC COMPOUND AND AN EMULSIFIER AND/OR AN ANIONIC SURFACTANT AND METHODS EMPLOYING THEM
3y 1m to grant Granted May 12, 2026
Patent 12624306
REFRIGERATOR OIL COMPOSITION AND MIXED COMPOSITION FOR REFRIGERATOR
2y 10m to grant Granted May 12, 2026
Patent 12618015
PROCESS FOR PRODUCING KEROSENE FROM RENEWABLE SOURCES
2y 2m to grant Granted May 05, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
72%
Grant Probability
99%
With Interview (+33.3%)
2y 4m (~8m remaining)
Median Time to Grant
High
PTA Risk
Based on 1355 resolved cases by this examiner. Grant probability derived from career allowance rate.

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