Prosecution Insights
Last updated: April 19, 2026
Application No. 18/267,950

SURFACE COATED CUTTING TOOL

Non-Final OA §103§112
Filed
Jun 16, 2023
Examiner
WASHVILLE, JEFFREY D
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsubishi Materials Corporation
OA Round
1 (Non-Final)
80%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
75%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
988 granted / 1236 resolved
+14.9% vs TC avg
Minimal -5% lift
Without
With
+-4.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
36 currently pending
Career history
1272
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
50.6%
+10.6% vs TC avg
§102
32.8%
-7.2% vs TC avg
§112
12.3%
-27.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1236 resolved cases

Office Action

§103 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Information Disclosure Statement 2. The information disclosure statement (IDS) submitted on 6/16/2023, 3/18/2024 and 11/5/2025 were filed timely. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Rejections - 35 USC § 112 3. The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. 4. Claims 2 and 5-6 are rejected under 35 U.S.C. 112(d) as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 2 requires removal of the independent claim topmost layer, which is improper. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 103 5. 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. 6. 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. 7. Claim 1 is rejected under 35 U.S.C. 103 as being unpatentable over (JP 2020146777 A) to Sato (hereinafter Sato). Sato is directed toward a surface coated cutting tool. Sato discloses at paragraph [0017] that it has multiple layers and that the total layer thickness is 0.5 to 8 microns, which reads on Applicants range of 1). Sato discloses at paragraph [0017] that the top and bottom sublayers are alternated over each other that reads on Applicants requirement 2). Sato discloses at paragraph [0017] that the following is an A layer: PNG media_image1.png 222 738 media_image1.png Greyscale The A layer above reads on Applicants composition for requirement 3). Sato discloses at paragraph [0017] that the following is an B layer: PNG media_image2.png 132 696 media_image2.png Greyscale The B layer above reads on Applicants composition for requirement 4). Sato discloses at paragraph [0020] that the structure is cubic: PNG media_image3.png 232 682 media_image3.png Greyscale This reads on Applicants requirement of cubic structure for the crystals for requirements 5) and 6). Sato discloses each and every element as arranged in claim 1 that forms a prime facie case of obviousness. 8. Claims 2-6 are rejected under 35 U.S.C. 103 as being unpatentable over (JP 2020146777 A) to Sato (hereinafter Sato) in view of (US 2023/0119858 A1) to Sato (hereinafter Sato2). Sato is directed toward a surface coated cutting tool. Sato discloses at paragraph [0017] that it has multiple layers and that the total layer thickness is 0.5 to 8 microns, which reads on Applicants range of 1). Sato discloses at paragraph [0017] that the top and bottom sublayers are alternated over each other that reads on Applicants requirement 2). Sato discloses at paragraph [0017] that the following is an A layer: PNG media_image1.png 222 738 media_image1.png Greyscale The A layer above reads on Applicants composition for requirement 3). Sato discloses at paragraph [0017] that the following is an B layer: PNG media_image2.png 132 696 media_image2.png Greyscale The B layer above reads on Applicants composition for requirement 4). Sato discloses at paragraph [0020] that the structure is cubic: PNG media_image3.png 232 682 media_image3.png Greyscale This reads on Applicants requirement of cubic structure for the crystals for requirements 5) and 6). Sato2 is directed toward a surface coated cutting tool. Sato and Sato2 are both directed toward a surface coated cutting tool and therefore are analogous art. Sato2 teaches at paragraph [0044] a 3rd layer type, which provides motivation to combine by adding chipping and breaking resistance to the tool PNG media_image4.png 126 426 media_image4.png Greyscale Sato2 teaches at paragraph [0019] a W content of variation of 1 to 100 nm that follows the following relation: PNG media_image5.png 125 426 media_image5.png Greyscale Sato2 teaches at paragraph [0022] an intermediate layer: PNG media_image6.png 136 432 media_image6.png Greyscale It would be obvious to one skilled in the art at the time the of the disclosure of Sato in view of the teachings of Sato2 to modify the coating of the tool to improve resistance to chipping by adding an adhesive layer, which forms a prime facie case of obviousness for claims 2-6. Conclusion 9. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JEFFREY D WASHVILLE whose telephone number is (571)270-3262. The examiner can normally be reached M-F 9-5. 10. 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. 11. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached at 571-272-1302. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 12. 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. /JEFFREY D WASHVILLE/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Jun 16, 2023
Application Filed
Nov 23, 2025
Non-Final Rejection — §103, §112 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
80%
Grant Probability
75%
With Interview (-4.9%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1236 resolved cases by this examiner. Grant probability derived from career allow rate.

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