Prosecution Insights
Last updated: April 19, 2026
Application No. 18/488,885

Golf Club Having a Reinforced Ball Striking Plate

Final Rejection §103
Filed
Oct 17, 2023
Examiner
HUNTER, ALVIN A
Art Unit
3711
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Karsten Manufacturing Corporation
OA Round
3 (Final)
86%
Grant Probability
Favorable
4-5
OA Rounds
2y 3m
To Grant
89%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
1128 granted / 1316 resolved
+15.7% vs TC avg
Minimal +3% lift
Without
With
+2.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
32 currently pending
Career history
1348
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
47.2%
+7.2% vs TC avg
§102
17.9%
-22.1% vs TC avg
§112
14.8%
-25.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1316 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Claim Rejections - 35 USC § 103 The following is a quotation of pre-AIA 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 1, 2, 6, 7, 10-15, and 18-20 is/are rejected under pre-AIA 35 U.S.C. 103(a) as being obvious over Chen (USPN 7169062). Regarding claim 1, Chen discloses a ball striking device having a ball striking plate. The ball striking plate has a front surface and a rear surface and includes a geometric center, a desired contact region, and a perimeter. Chen also discloses one or more spoke-like reinforcement ribs located on the rear surface of the ball striking plate and extending away from the geometric center toward the perimeter. Each spoke-like reinforcement rib has a cross-sectional shape, height, width, and cross-sectional area (See Figure 3-9). Applicant does not disclose why the dimension and shape of the spoke-like reinforcement ribs are critical in order to attain the invention. According to the applicant, the spoke-like reinforcement ribs can have a maximum height of 2mm, and maximum width of 3mm, and a maximum cross-section of 1mm2 (See Paragraphs 61, 62, and 64 of the specification). Chen does note that the thickness (height) of the ribs can range from 0 to 30mm (See Column 4, lines 55 through 67) and that the width can vary. Applicant notes that the length of the spoke-like reinforcement ribs are of equal or unequal lengths; however, there is no disclosed advantages of having the same or different lengths. Chen discloses the lengths of the spoke-like reinforcement ribs having equal lengths. Further, Chen also notes that the spoke-like reinforcement ribs obstruct the stress forces to reduce deformation of the strike face. One having ordinary skill in the art would find the dimensions and shape of the spoke-reinforcement ribs to be an obvious choice of design. Regarding claim 2, Applicant does not disclose why having curved ribs are critical in attaining the invention. Chen discloses a club head having a ball striking plate with spoke-like reinforcement ribs wherein the ribs gradually increase in thickness (See Figure 7). Though Chen does not show the ribs being curved, curved ribs would gradually increase in thickness also. Therefore, one having ordinary skill in the art would have found the curved profile of the ribs to be an obvious choice of design. The ribs disclosed by Chen would perform equally as well since it reinforces the ball striking plate and places more flexure emphasis on the geometric center of the ball striking plate. Regarding claim 6, Chen discloses at least one of the spoke-like reinforcement rips being a linear element (See Figure 2, 3 and 7). Regarding claim 7, Chen discloses the spoke-like reinforcement ribs extending to the perimeter of the ball striking plate (See Figures 2, 3, and 7). Regarding claim 10, Chen discloses that having a thickened portion with an elevated area on the rear surface of the ball striking plate is well known. This is evident by Figure 1 and the description of the related art disclosed by Chen. Further Chen also discloses that the disclosed invention and the invention in Figure 1 have similar configuration and function (See Column 3, lines 33 through 40). Based on the above, one having ordinary skill in the art would have found the elevated thickened area to be and obvious Regarding claim 11, see the above regarding claim 1. Regarding claim 12, see the above regarding claim 1. Regarding claim 13, see the above regarding claim 1. Regarding claim 14, see the above regrading claim 2. Regarding claim 15, see the above regarding claim 7. Regarding claim 18, see the above regarding claim 1. Regarding claim 19, see the above regarding claim 2. Regarding claim 20, see the above regarding claim 7. Response to Arguments Applicant's arguments filed 12/03/2025 have been fully considered but they are not persuasive. Applicant argues that Chen does not teach the spoke-like reinforcement ribs being unequal in length. A change in the dimensions, shape, and size of an element must result in a new or unexpected result. In the instant situation, there is not evidence that a new or unexpected result is achieved by varying the length of the spoke-like reinforcement ribs. For this reason, the above rejection has been furnished. Applicant’s arguments with respect to claim(s) 8 have been considered but are moot. These claims have been cancelled by the applicant. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, 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 ALVIN A HUNTER whose telephone number is (571)272-4411. The examiner can normally be reached on Monday through Friday from 7:30AM to 4:00PM Eastern Time. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Eugene Kim, can be reached at telephone number 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 an application may be obtained from Patent Center. Status information for published applications may be obtained from Patent Center. Status information for unpublished applications is available through Patent Center to authorized users only. Should you have questions about access to the USPTO patent electronic filing system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). Examiner interviews are available via a variety of formats. See MPEP § 713.01. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) Form at https://www.uspto.gov/InterviewPractice. /ALVIN A HUNTER/Primary Examiner, Art Unit 3711
Read full office action

Prosecution Timeline

Oct 17, 2023
Application Filed
Dec 28, 2024
Non-Final Rejection — §103
Apr 03, 2025
Response Filed
Jul 08, 2025
Non-Final Rejection — §103
Dec 03, 2025
Response Filed
Mar 04, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599820
WEIGHTED IRON SET
2y 5m to grant Granted Apr 14, 2026
Patent 12594470
Irons with optimized face
2y 5m to grant Granted Apr 07, 2026
Patent 12576315
CLUBHEADS FOR IRON-TYPE GOLF CLUBS
2y 5m to grant Granted Mar 17, 2026
Patent 12569730
GOLF CLUB HAVING AN ADJUSTABLE WEIGHT ASSEMBLY
2y 5m to grant Granted Mar 10, 2026
Patent 12569731
GOLF CLUB
2y 5m to grant Granted Mar 10, 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
86%
Grant Probability
89%
With Interview (+2.9%)
2y 3m
Median Time to Grant
High
PTA Risk
Based on 1316 resolved cases by this examiner. Grant probability derived from career allow rate.

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