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).

  • Patent number: 9821203
    Abstract: 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: Grant
    Filed: June 8, 2016
    Date of Patent: November 21, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Keith F. Dolezel, Matthew R. Daraskavich
  • Patent number: 9782644
    Abstract: 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: Grant
    Filed: June 8, 2015
    Date of Patent: October 10, 2017
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Keith F. Dolezel, Sharon J. Park, Ryan J. A. Ritchie
  • Publication number: 20160279488
    Abstract: 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: Application
    Filed: June 8, 2016
    Publication date: September 29, 2016
    Applicant: DUNLOP SPORTS CO., LTD.
    Inventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
  • Patent number: 9381407
    Abstract: 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: Grant
    Filed: December 5, 2014
    Date of Patent: July 5, 2016
    Assignee: Dunlop Sports Co., Ltd
    Inventors: Keith F. Dolezel, Matthew R. Daraskavich
  • Publication number: 20150265886
    Abstract: 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: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Inventors: Keith F. DOLEZEL, Sharon J. PARK, Ryan J. A. RITCHIE
  • Patent number: 9061185
    Abstract: 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: Grant
    Filed: September 18, 2012
    Date of Patent: June 23, 2015
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Keith F. Dolezel, Sharon J. Park, Ryan J. A. Ritchie
  • Publication number: 20150157903
    Abstract: 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: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Applicant: Dunlop Sports Co, Ltd
    Inventors: Keith F. DOLEZEL, Matthew R. DARASKAVICH
  • Patent number: 8920258
    Abstract: 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: Grant
    Filed: August 6, 2012
    Date of Patent: December 30, 2014
    Assignee: Dunlop Sports Co. Ltd.
    Inventors: Keith F. Dolezel, Matthew R. Daraskavich
  • Patent number: D799616
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 10, 2017
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
  • Patent number: D799617
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 10, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
  • Patent number: D799618
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 10, 2017
    Assignee: DUNLOP SPORTS CO., LTD.
    Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
  • Patent number: D799619
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 10, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Mika Becktor, Keith F. Dolezel
  • Patent number: D803334
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: November 21, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Mika Becktor, Keith F Dolezel, Phillip C Seagram
  • Patent number: D809081
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: January 30, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Mika Becktor, Keith F. Dolezel, Phillip C. Seagram
  • Patent number: D821511
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 26, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Keith F. Dolezel, Mika Becktor
  • Patent number: D821515
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 26, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Keith F. Dolezel, Mika Becktor
  • Patent number: D823408
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 17, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Keith F. Dolezel
  • Patent number: D823960
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 24, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Keith F. Dolezel
  • Patent number: D823961
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 24, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Keith F. Dolezel
  • Patent number: D823964
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: July 24, 2018
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Keith F. Dolezel