Prosecution Insights
Last updated: April 19, 2026
Application No. 18/437,103

Compact Putter Head

Non-Final OA §DP
Filed
Feb 08, 2024
Examiner
PASSANITI, SEBASTIANO
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
1y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1408 granted / 1699 resolved
+12.9% vs TC avg
Strong +16% interview lift
Without
With
+15.9%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
44 currently pending
Career history
1743
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
36.4%
-3.6% vs TC avg
§102
20.2%
-19.8% vs TC avg
§112
18.5%
-21.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1699 resolved cases

Office Action

§DP
DETAILED ACTION This Office action is responsive to communication received 02/08/2024 – Application papers received, including IDS; 04/24/2024 – Response to Notice to File Missing Parts. 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 . Continuation Data This application is a CON of 18/315,842 05/11/2023 PAT 11911670 which claims benefit of 63/406,657 09/14/2022 and claims benefit of 63/366,131 06/09/2022 and claims benefit of 63/364,709 05/13/2022. Drawings The drawings were received on 02/08/2024. These drawings are acceptable. Status of Claims Claims 1-20 are pending. FOLLOWING IS AN ACTION ON THE MERITS: Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-20 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-18 of U.S. Patent No. 11,911,670 in view of US PUBS 2008/0146369 to Wahl et al (hereinafter referred to as “Wahl”). Although the claims at issue are not identical, they are not patentably distinct from each other because ethe differences are considered minor phrasing differences and/or obvious and well known in the art. See the explanations below: As to independent claims 1, 9 and 14, the claimed invention of the prior ‘670 patent is, on one hand, more specific than the instant claims. For example, the claims of the ‘670 patent further require “wherein a ratio WSF/WB of the strike face width WSF to the body width WB is less than 0.75; a hosel attached to the body at a hosel connection point centered with respect to a hosel aperture defined in the body, the hosel aperture configured to receive the hosel, wherein the hosel comprises a hosel bore; wherein the hosel connection point is located rearward of the vertical midplane; wherein the putter-type golf club head further comprises a moment of inertia MOIyy between 1000 g-cm 2 to 2000 g-cm2; and wherein a ratio MOIyy /ASF of the moment of inertia MOIyy to the strike face surface area ASF is greater than 230 g” (i.e., claim 1 of the ‘670 patent). On the other hand, the claims of the ‘670 patent lack the now-recited “wherein the putter-type golf club head further comprises a moment of inertia MOIyy between 1700 g-cm2 to 3000 g-cm2; and wherein a ratio MOIyy/WB of the moment of inertia MOIyy to the body width WB is greater than 305 g-cm” (claims 1 and 14) as well as the now-recited “wherein the putter-type golf club head further comprises a moment of inertia MOIyy between 2700 g-cm2 to 3000 g-cm2; and wherein a ratio MOIyy/WB of the moment of inertia MOIyy to the body width WB is greater than 400 g-cm” (claim 9). Here, Wahl teaches that a putter head may include a moment of inertia about a vertical axis of greater than 4000 g-cm2 and that a width (WF1) of a putter head body may be dimensioned as 8.4 cm, thereby providing a ratio of the moment of inertia about a vertical axis / the body width of 476 g-cm. See paragraphs [0018] and [0029] in Wahl. Although Wahl does not disclose the specific body width required by the instant claims, Wahl does note that a higher moment of inertia incorporated within the design and related to the dimensions of the putter head body provides added club head stability (i.e., see paragraph [0004]). It is further noted that the claims of the ‘670 patent already provide for a body width of 2.30 inches (5.84 cm), while providing a moment of inertia about a vertical axis (MOIyy) between 1000 g-cm2 to 2000 g-cm2. In view of the teaching in Wahl, it would have been obvious to one of ordinary skill in the art and before the effective filing date of the claimed invention to have modified the claimed invention of the prior ‘670 patent by increasing the moment of inertia about the vertical axis (MOIyy) to include a value between 1700 g-cm2 to 3000 g-cm2, as required by independent claims 1 and 14, so that a ratio MOIyy/WB of the moment of inertia MOIyy to the body width WB is greater than 305 g-cm, or by increasing the moment of inertia about the vertical axis (MOIyy) to include a value between 2700 g-cm2 to 3000 g-cm2, as required by independent claim 9, so that a ratio MOIyy/WB of the moment of inertia MOIyy to the body width WB is greater than 400 g-cm, with there being a reasonable expectation of success that increasing the moment of inertia MOIyy would have enhanced the stability of the putter head during off-center impacts between the strike face and a golf ball, thus improving the performance characteristics of the putter head. As to the remaining limitations in claims 1, 9 and 14, see claims 1, 5, 11 and 14 of the ‘670 patent. As to claim 2, see claim 3 of the ‘670 patent. As to claim 3, see claim 14 of the ‘670 patent. Any differences in the size (i.e., volume) of the putter head of the claimed invention would have been considered to be an obvious change in the size of the putter body over the volume of the putter head body recited in the ‘670 patent, as the claimed differences in relative dimensions would not have altered the manner in which the putter head is used or how the putter head operates. In Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984), the Federal Circuit held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. See MPEP 2144. As to claim 4, see claim 4 of the ‘670 patent. As to claim 5, see claim 11 of the ‘670 patent. As to claim 6, see claims 1 and 11 of the ‘670 patent. As to claim 7, see claims 1, 5, 11 and 14 of the ‘670 patent. As to claim 8, see claim 10 of the ‘670 patent. As to claim 10, see claim 3 of the ‘670 patent. As to claim 11, see claim 14 of the ‘670 patent. Again, any differences in the size (i.e., volume) of the putter head of the claimed invention would have been considered to be an obvious change in the size of the putter body over the volume of the putter head body recited in the ‘670 patent, as the claimed differences in relative dimensions would not have altered the manner in which the putter head is used or how the putter head operates. In Gardner v. TEC Syst., Inc., 725 F.2d 1338, 220 USPQ 777 (Fed. Cir. 1984), cert. denied, 469 U.S. 830, 225 USPQ 232 (1984), the Federal Circuit held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. See MPEP 2144. As to claim 12, see claim 11 of the ‘670 patent. As to claim 13, see claims 1 and 11 of the ‘670 patent. As to claim 15, see claim 6 of the ‘670 patent. As to claim 16, see claim 16 of the ‘670 patent. The broader range for the surface area value recited in claim 16 of the ‘670 patent encompasses the more specific range now-claimed. As to claim 17, see claim 17 of the ‘670 patent. The broader range for the dimension of the strike face perimeter recited in claim 17 of the ‘670 patent encompasses the narrower range now-claimed. As to claim 18, see claims 1, 11 and 14 of the ‘670 patent. As to claim 19, see claims 1 and 11 of the ‘670 patent. As to claim 20, see claim 5 of the ‘670 patent. Further References of Interest The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Tang teaches that a width and length of a putter head may be equally dimensioned (i.e., paragraph [0053]); Fig. 2 in àWengen; Figs. 42-43 in Parsons; Demkowski teaches that a higher moment of inertia about a vertical axis reduces club head twisting (i.e., col. 16, lines 63-67); Figs. 1-2 in Wahl (‘371); Fig. 1 in Nishino; and Fig. 12 in Rohrer. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SEBASTIANO PASSANITI whose telephone number is (571)272-4413. The examiner can normally be reached 9:00AM-5:00PM Mon-Fri. 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, Nicholas Weiss can be reached at (571)-270-1775. 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. SEBASTIANO PASSANITI Primary Examiner Art Unit 3711 /SEBASTIANO PASSANITI/Primary Examiner, Art Unit 3711
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Prosecution Timeline

Feb 08, 2024
Application Filed
Jan 04, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12582879
MULTI-PIECE GOLF CLUB HEAD
2y 5m to grant Granted Mar 24, 2026
Patent 12576320
GOLF CLUB WEIGHT ATTACHMENT MECHANISMS AND RELATED METHODS
2y 5m to grant Granted Mar 17, 2026
Patent 12569727
MULTI-PIECE GOLF CLUB HEAD
2y 5m to grant Granted Mar 10, 2026
Patent 12569729
GOLF CLUB
2y 5m to grant Granted Mar 10, 2026
Patent 12558598
GOLF CLUB HEAD
2y 5m to grant Granted Feb 24, 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
99%
With Interview (+15.9%)
1y 11m
Median Time to Grant
Low
PTA Risk
Based on 1699 resolved cases by this examiner. Grant probability derived from career allow rate.

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