Prosecution Insights
Last updated: July 17, 2026
Application No. 18/827,341

Method And System For Utilizing Radio-Opaque Fillers In Multiple Layers Of Golf Balls

Non-Final OA §103§112§DP
Filed
Sep 06, 2024
Priority
May 27, 2020 — provisional 63/030,494 +4 more
Examiner
GORDEN, RAEANN
Art Unit
Tech Center
Assignee
Callaway Golf Company
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
1231 granted / 1484 resolved
+23.0% 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 §112 §DP
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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-2 and 5 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1, line 10, no antecedent basis for outer core (amend to mantle). Claim 2, no antecedent basis for the first radio-opaque filler and second first radio-opaque filler. Claim 5, no antecedent basis for the first radio-opaque filler. 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) 1-6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Cavallaro et al (5,810,678) in view of Sullivan et al. (2012/0184396). Claims 1-2, Cavallaro discloses a golf ball comprising a core made from polybutadiene, a mantle, and a cover (col. 6, lines 14-21). The core includes barium sulfate (radio-opaque filler) in the amount of 20.5-25.8% by weight (table 1). The core has a density less than 1.2 (col. 14, lines 27-28). Cavallero discloses the core includes a polybutadiene, zinc diacrylate, zinc oxide, and peroxide but does not disclose zinc stearate and organic sulfur. Sullivan teaches a core composition comprising polybutadiene, zinc diacrylate, zinc oxide, peroxide, zinc stearate and organic sulfur [0031, 0032, 0039]. One of ordinary skill in the art would have included zinc stearate and organic sulfur to add in processing, since such ingredients are known in the golf ball art. The mantle is made from an ionomer (col. 12, lines 6-7) with a thickness from 0.025 to 0.125 inch (col. 14, lines 15-16) and a Shore D hardness of 60 (col. 16, lines 14-18). The cover includes barium sulfate (radio-opaque filler) in the amount of 30% by weight (col. 14, lines 38-41). Cavallero does not disclose different fillers in the layers. However, Sullivan teaches interchangeable fillers including barium sulfate, bismuth, and tungsten [0036]. One of ordinary skill in the art would modify the type of filler as an obvious design choice, Sullivan teaches the fillers as interchangeable [0036]. Claim 3, the cover layer is made from an ionomer (col. 12, lines 29-34). Claims 4-5, Cavallaro discloses a golf ball comprising a core made from polybutadiene, a mantle made from butadiene materials (col. 11, line 48), and a cover (col. 6, lines 14-21). The core includes barium sulfate (radio-opaque filler) in the amount of 20.5-25.8% by weight (table 1). The core has a density less than 1.2 (col. 14, lines 27-28). Cavallero discloses the core includes a polybutadiene, zinc diacrylate, zinc oxide, and peroxide but does not disclose zinc stearate and organic sulfur. Sullivan teaches dual core compositions comprising polybutadiene, zinc diacrylate, zinc oxide, peroxide, zinc stearate and organic sulfur [0030, 0031, 0032, 0039]. One of ordinary skill in the art would have included zinc stearate and organic sulfur to add in processing, since such ingredients are known in the golf ball art. The cover includes barium sulfate (radio-opaque filler) in the amount of 30% by weight (col. 14, lines 38-41). Cavallero does not discloses different fillers in the layers. However, Sullivan teaches interchangeable fillers including barium sulfate, bismuth, and tungsten [0036]. One of ordinary skill in the art would modify the type of filler as an obvious design choice, Sullivan teaches the fillers as interchangeable [0036]. Claim 6, the cover layer is made from an ionomer (col. 12, lines 29-34). One of ordinary skill in the art would modify the type of filler as an obvious design choice, Sullivan teaches the fillers as interchangeable [0036]. 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 USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The 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/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-8 of U.S. Patent No. 11,318,354. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘354 claims anticipate the instant claims. Claims 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6 of U.S. Patent No. 11,712,604. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘604 claims anticipate the instant claims. Claims 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-2 of U.S. Patent No. 12,083,390. Although the claims at issue are not identical, they are not patentably distinct from each other because the ‘390 claims anticipate the instant 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 on 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 June 15, 2026
Read full office action

Prosecution Timeline

Sep 06, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §103, §112, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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RUBBER COMPOSITION FOR GOLF BALL
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GOLF BALL
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GOLF BALL INCORPORATING INORGANIC ALUMINOSILICATE CERAMIC MICROSPHERES IN AT LEAST ONE LAYER
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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 (-4.7%)
2y 1m (~3m 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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