Prosecution Insights
Last updated: July 17, 2026
Application No. 18/506,863

Mechanical and Chemical Surface Treatment of a Golf Club Head

Non-Final OA §103
Filed
Nov 10, 2023
Priority
Nov 10, 2022 — provisional 63/383,234
Examiner
GORDEN, RAEANN
Art Unit
3711
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
KARSTEN MANUFACTURING Corporation
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
1231 granted / 1484 resolved
+13.0% vs TC avg
Minimal -5% lift
Without
With
+-4.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
26 currently pending
Career history
1516
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
57.4%
+17.4% vs TC avg
§102
5.9%
-34.1% vs TC avg
§112
8.6%
-31.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1484 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 . Election/Restrictions Applicant’s election without traverse of claims 13-20 in the reply filed on 1/23/2026 is acknowledged. Claim Objections Claims 1-12 objected to because of the following informalities: The withdrawn claims should include the correct status identifiers. Appropriate correction is required. 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. Claim(s) 13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Chen (CH-110976880). Chen discloses a golf club head comprising a body having a top rail opposite a sole, a toe opposite a heel, a hosel coupled to the club body and having a first end proximate the heel and a second end opposite the first end and an outer surface comprising a QPQ finish (S5). The QPQ finish comprises a nitride layer (3), a first oxide layer (4), and a second oxide layer (7); wherein the outer surface comprises a grade 3 QPQ finish. The grade 3 finish is satisfied by Chen because the disclosure makes clear the QPQ process greatly improves corrosion resistance, which is the definition of a grade 3 finish. While the specification does not disclose the term grade 3 the finish type is indicated. One of ordinary skill in the art would enhance the finish type to a grade 3 for increase durability. Chen does not disclose the uniformity of the layers from 1 to 1.25 but does make clear the nitriding time is set to make sure the product has a smoother surface and to further reduce local pitting. A smooth surface and no pitting would obviously produce a uniform layer within applicant’s uniformity range from 1 to 1.25. Increasing or decreasing the value to obtain a smooth surface as close to 1 as possible is within the capabilities of on skilled in the art. "[W]here the general conditions of a claim are disclosed in the prior art, it is not inventive to discover the optimum or workable ranges by routine experimentation." In re Aller, 220 F.2d 454, 456, 105 USPQ 233, 235 (CCPA 1955). Allowable Subject Matter Claims 14-20 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAEANN GORDEN whose telephone number is (571)272-4409. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Eugene Kim can be reached at 571-272-4463. 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. /RAEANN GORDEN/Primary Examiner, Art Unit 3711 March 31, 2026
Read full office action

Prosecution Timeline

Nov 10, 2023
Application Filed
Apr 09, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12674045
RUBBER COMPOSITION FOR GOLF BALL
2y 7m to grant Granted Jul 07, 2026
Patent 12673243
GOLF CLUB HEAD AND METHOD FOR MANUFACTURING SAME
2y 0m to grant Granted Jul 07, 2026
Patent 12673241
GOLF BALL
1y 11m to grant Granted Jul 07, 2026
Patent 12667756
GOLF BALL INCORPORATING INORGANIC ALUMINOSILICATE CERAMIC MICROSPHERES IN AT LEAST ONE LAYER
2y 3m to grant Granted Jun 30, 2026
Patent 12661560
GOLF CLUB FACE WITH ROUGHNESS CHARACTERISTICS FOR MORE CONSISTENT PERFORMANCE IN WET AND DRY CONDITIONS
2y 0m to grant Granted Jun 23, 2026
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
83%
Grant Probability
78%
With Interview (-4.7%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1484 resolved cases by this examiner. Grant probability derived from career allowance rate.

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