Prosecution Insights
Last updated: April 19, 2026
Application No. 18/745,168

GOLF BALL

Non-Final OA §103
Filed
Jun 17, 2024
Examiner
GORDEN, RAEANN
Art Unit
3711
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Sumitomo Rubber Industries, Ltd.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
78%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1220 granted / 1469 resolved
+13.0% vs TC avg
Minimal -5% lift
Without
With
+-5.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
41 currently pending
Career history
1510
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
13.8%
-26.2% vs TC avg
§112
21.0%
-19.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1469 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 . 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) 1, 3-10, and 12-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hayashi et al. (2020/0129815) in view of Iwami et al. (2005/0049084). Claim 1, Hayashi discloses a golf ball comprising a spherical core, and an outermost cover positioned outside the spherical core and having a plurality of dimples formed thereon, wherein a hardness difference S (=Hs-Ho) of zero between a surface hardness Hs of the spherical core and a center hardness Ho (Shore C hardness) of the spherical core [0143], a material hardness C (Shore D hardness) of 60 for the outermost cover [0151]. Hayashi discloses the golf ball has between 200 and 500 dimple but does not disclose the total volume of the dimples [0150]. Iwami teaches a golf ball comprising about 432 dimples with a total volume V (V+W) (mm3) of the plurality of dimples below a surface of a virtual sphere from 485.2 mm3 to 585.2 mm3 (tables 3-4 (V+W)). Solving for V+S×C≤1200 (485.2+ 0×60 = 485.2). One of ordinary skill in the art would modify the dimple volume for the desired flight performance. Claim 3, Hayashi discloses wherein S+C≤60 (0+60=60) is satisfied. Claim 4, Hayashi discloses the cover contains an ionomer resin (table 3). Claim 5, Iwami teaches the total volume V (V+W) of the plurality of dimples ranges from 485.2 mm3 to 585.2 mm3 (tables 3-4 (V+W)). Claim 6, Hayashi discloses the hardness difference S ranges from 0 to 20 in Shore C hardness [0143]. Claim 7, Hayashi discloses the surface hardness Hs of the spherical core ranges from 50 to 90 in Shore C hardness [0141]. Claim 8, Hayashi discloses the center hardness Ho of the spherical core ranges from 40 to 90 in Shore C hardness [0142]. Claim 9, Hayashi discloses the material hardness C of the outermost cover ranges from 20 to 70 in Shore D hardness [0151]. Claim 10, Hayashi in view of Iwami discloses S, C, and V satisfy 300≤V+S×C≤1200 (485.2+ 0×60 = 485.2). Claim 12, Hayashi discloses 30≤S+C (0+60=60) is satisfied. Claim 13, Hayashi discloses the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator (abstract). Claim 14, Hayashi discloses the rubber composition further contains (g) a terpene-based resin (abstract). Claim 15, Hayashi discloses an amount of (g) the terpene-based resin ranges from 2 part by mass to 10 parts by mass with respect to 100 parts by mass of (a) the base rubber [0056]. One of ordinary skill in the art would modify the dimple volume for the desired flight performance. Claim(s) 2 and 11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Hayashi et al. (2020/0129815) in view of Iwami et al. (2005/0049084), and further in view of Kasashima et al. (5,911,639). Claim 2 and 11, Hayashi in view of Iwami does not disclose the lower dimple volume less than the upper dimple volume Vi-Vo≤0 and Vi-Vo ≥ -100, which is essentially dimples with a decreased depth or shallow dimple. Kashima teaches a depth for dimples of 0.8 mm (fig 1; col. 2, lines 14-17). The depth is within the range disclosed by applicant for dimple patterns 5-6, table 4-1, which has dimple depths of 0.0749 mm and 0.0877 mm. The dimple depth of Kasashima combined with the diameters of Iwami (3.2 to 4.1 mm, table 3) (Note: applicant’s dimple diameters are from 3 to 4.4 mm, Table 4-1) will provide volumes within the range claimed by applicant because the volume is derived from the depth and diameter. One of ordinary skill in the art would decrease the dimples depth to reduce the drag. 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 January 15, 2026
Read full office action

Prosecution Timeline

Jun 17, 2024
Application Filed
Jan 16, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
83%
Grant Probability
78%
With Interview (-5.0%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 1469 resolved cases by this examiner. Grant probability derived from career allow rate.

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