Patents by Inventor Keith F. Dolezel
Keith F. Dolezel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9821203Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: June 8, 2016Date of Patent: November 21, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Keith F. Dolezel, Matthew R. Daraskavich
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Patent number: 9782644Abstract: A correlated set of golf club heads is provided. The set of golf clubs has a first club head that, when oriented in a reference position, includes: a first loft angle, a first heel portion, a first toe portion opposite the first heel portion, a first top portion, and a first sole portion that comprises a first sole rail having a first setback length. The set of golf clubs also has a second club head that, when oriented in the reference position, includes: a second loft angle greater than the first loft angle, a second heel portion, a second toe portion opposite the second heel portion, a second top portion, and a second sole portion that comprises a second sole rail having a second setback length that is different from the first setback length.Type: GrantFiled: June 8, 2015Date of Patent: October 10, 2017Assignee: DUNLOP SPORTS CO., LTD.Inventors: Keith F. Dolezel, Sharon J. Park, Ryan J. A. Ritchie
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Publication number: 20160279488Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Applicant: DUNLOP SPORTS CO., LTD.Inventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
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Patent number: 9381407Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: December 5, 2014Date of Patent: July 5, 2016Assignee: Dunlop Sports Co., LtdInventors: Keith F. Dolezel, Matthew R. Daraskavich
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Publication number: 20150265886Abstract: A correlated set of golf club heads is provided. The set of golf clubs has a first club head that, when oriented in a reference position, includes: a first loft angle, a first heel portion, a first toe portion opposite the first heel portion, a first top portion, and a first sole portion that comprises a first sole rail having a first setback length. The set of golf clubs also has a second club head that, when oriented in the reference position, includes: a second loft angle greater than the first loft angle, a second heel portion, a second toe portion opposite the second heel portion, a second top portion, and a second sole portion that comprises a second sole rail having a second setback length that is different from the first setback length.Type: ApplicationFiled: June 8, 2015Publication date: September 24, 2015Inventors: Keith F. DOLEZEL, Sharon J. PARK, Ryan J. A. RITCHIE
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Patent number: 9061185Abstract: A correlated set of golf club heads is provided. The set of golf clubs has a first club head that, when oriented in a reference position, includes: a first loft angle, a first heel portion, a first toe portion opposite the first heel portion, a first top portion, and a first sole portion that comprises a first sole rail having a first setback length. The set of golf clubs also has a second club head that, when oriented in the reference position, includes: a second loft angle greater than the first loft angle, a second heel portion, a second toe portion opposite the second heel portion, a second top portion, and a second sole portion that comprises a second sole rail having a second setback length that is different from the first setback length.Type: GrantFiled: September 18, 2012Date of Patent: June 23, 2015Assignee: DUNLOP SPORTS CO. LTD.Inventors: Keith F. Dolezel, Sharon J. Park, Ryan J. A. Ritchie
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Publication number: 20150157903Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: ApplicationFiled: December 5, 2014Publication date: June 11, 2015Applicant: Dunlop Sports Co, LtdInventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
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Patent number: 8920258Abstract: A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.Type: GrantFiled: August 6, 2012Date of Patent: December 30, 2014Assignee: Dunlop Sports Co. Ltd.Inventors: Keith F. Dolezel, Matthew R. Daraskavich
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Patent number: D799616Type: GrantFiled: July 25, 2016Date of Patent: October 10, 2017Assignee: DUNLOP SPORTS CO., LTD.Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
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Patent number: D799617Type: GrantFiled: July 25, 2016Date of Patent: October 10, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
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Patent number: D799618Type: GrantFiled: July 25, 2016Date of Patent: October 10, 2017Assignee: DUNLOP SPORTS CO., LTD.Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
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Patent number: D799619Type: GrantFiled: July 25, 2016Date of Patent: October 10, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Mika Becktor, Keith F. Dolezel
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Patent number: D803334Type: GrantFiled: July 25, 2016Date of Patent: November 21, 2017Assignee: DUNLOP SPORTS CO. LTD.Inventors: Mika Becktor, Keith F Dolezel, Phillip C Seagram
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Patent number: D809081Type: GrantFiled: July 22, 2016Date of Patent: January 30, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
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Patent number: D821511Type: GrantFiled: June 9, 2017Date of Patent: June 26, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Keith F. Dolezel, Mika Becktor
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Patent number: D821515Type: GrantFiled: June 9, 2017Date of Patent: June 26, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventors: Keith F. Dolezel, Mika Becktor
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Patent number: D823408Type: GrantFiled: June 9, 2017Date of Patent: July 17, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventor: Keith F. Dolezel
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Patent number: D823960Type: GrantFiled: June 9, 2017Date of Patent: July 24, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventor: Keith F. Dolezel
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Patent number: D823961Type: GrantFiled: June 9, 2017Date of Patent: July 24, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventor: Keith F. Dolezel
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Patent number: D823964Type: GrantFiled: June 9, 2017Date of Patent: July 24, 2018Assignee: DUNLOP SPORTS CO. LTD.Inventor: Keith F. Dolezel