Patents by Inventor Grant M. Martens

Grant M. Martens 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).

  • Publication number: 20190105542
    Abstract: A golf club head including a face having a flat ball-striking surface and a body that forms a flexure. The golf club head has a feature formed in a sole of the golf club head that provides the flexure.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 11, 2019
    Applicant: Acushnet Company
    Inventors: John Morin, Noah de la Cruz, Nick Frame, Charles E. Golden, Jonathan Hebreo, Michael E. Franz, Grant M. Martens
  • Publication number: 20190091529
    Abstract: A golf club head includes a club head body and a weight member that is secured to the body in a weight mount. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member. The weight member includes a spring feature that is movably coupled to a weight body so that it is movable between a first configuration and a second configuration. In the second configuration a portion of the spring feature extends outward from a side wall of the weight body. The weight mount includes an undercut and the spring feature extends into the undercut and is partially flexed by the abutment of the spring feature and a perimeter wall of weight mount when the weight member is disposed in the weight mount.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Applicant: Acushnet Company
    Inventors: Jonathan Hebreo, Andrew McCarthy, Noah de la Cruz, Grant M. Martens
  • Publication number: 20180339204
    Abstract: A golf club head having a golf club head body and an inner wall structure. The club head body includes a back portion, a striking face, a sole, and a topline. The inner wall structure is at least partially in contact with a rear surface of the striking face. The inner wall structure also has a fixed end and an unfixed end. The golf club head is also configured such that the portion of the inner wall structure in contact with the rear surface of the striking face may slide against one another. The golf club head may also include a sole channel, and the fixed end of the inner wall structure may be attached to either a front edge or back edge of the sole channel.
    Type: Application
    Filed: August 6, 2018
    Publication date: November 29, 2018
    Applicant: Acushnet Company
    Inventors: Jonathan Hebreo, Michael E. Franz, Marni Ines, Joshua C. Stokes, Grant M. Martens, Charles E. Golden, Uday V. Deshmukh
  • Patent number: 10137342
    Abstract: A golf club head includes a club head body and a weight member that is secured to the body in a weight mount. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member. The weight member includes a spring feature that is movably coupled to a weight body so that it is movable between a first configuration and a second configuration. In the second configuration a portion of the spring feature extends outward from a side wall of the weight body. The weight mount includes an undercut and the spring feature extends into the undercut and is partially flexed by the abutment of the spring feature and a perimeter wall of weight mount when the weight member is disposed in the weight mount.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: November 27, 2018
    Assignee: Acushnet Company
    Inventors: Jonathan Hebreo, Andrew McCarthy, Noah de la Cruz, Grant M. Martens
  • Patent number: 10099092
    Abstract: A golf club head including a face having a flat ball-striking surface and a body that form a flexure. The golf club head has a feature formed in a sole of the golf club head that provides a flexure.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: October 16, 2018
    Assignee: Acushnet Company
    Inventors: John Morin, Noah de la Cruz, Nick Frame, Charles E. Golden, Jonathan Hebreo, Michael E. Franz, Grant M. Martens
  • Publication number: 20180256947
    Abstract: The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and a tungsten weight member coupled to the toe and a tungsten heel weight member coupled in a hosel cavity.
    Type: Application
    Filed: April 11, 2018
    Publication date: September 13, 2018
    Applicant: Acushnet Company
    Inventors: Jason A. Mata, Marni D. Ines, Jonathan Hebreo, Joshua G. Breier, Michael E. Franz, Joshua C. Stokes, Grant M. Martens
  • Patent number: 10065088
    Abstract: A golf club head having a golf club head body and an inner wall structure. The club head body includes a back portion, a striking face, a sole, and a topline. The inner wall structure is at least partially in contact with a rear surface of the striking face. The inner wall structure also has a fixed end and an unfixed end. The golf club head is also configured such that the portion of the inner wall structure in contact with the rear surface of the striking face may slide against one another. The golf club head may also include a sole channel, and the fixed end of the inner wall structure may be attached to either a front edge or back edge of the sole channel.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: September 4, 2018
    Assignee: ACUSHNET COMPANY
    Inventors: Jonathan Hebreo, Michael E. Franz, Marni Ines, Joshua C. Stokes, Grant M. Martens, Charles E. Golden, Uday V. Deshmukh
  • Patent number: 10029161
    Abstract: A golf club head includes a club head body and a weight member that is secured to the body. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member, and the weight member is preferably constructed so that it has a low profile.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: July 24, 2018
    Assignee: Acushnet Company
    Inventors: Scott A. Knutson, Noah de la Cruz, Andrew McCarthy, Grant M. Martens, Michael E. Franz
  • Publication number: 20180147459
    Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 31, 2018
    Applicant: Acushnet Company
    Inventors: Grant M. Martens, David S. Cornelius, Sang Yi, Ryuichi Sugimae, Joshua G. Breier, Thomas Orrin Bennett, Nick Frame, Stephen S. Murphy, Mitchell E. Bac, Stephanie Luttrell
  • Publication number: 20180117427
    Abstract: A golf club head includes a club head body and a weight member that is secured to the body. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member, and the weight member is preferably constructed so that it has a low profile.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Applicant: Acushnet Company
    Inventors: Scott A. Knutson, Noah de la Cruz, Andrew McCarthy, Grant M. Martens, Michael E. Franz
  • Publication number: 20180117428
    Abstract: A golf club head includes a club head body and a weight member that is secured to the body in a weight mount. The weight member is constructed to utilize lateral forces to couple to the head body to minimize the structure required to retain the weight member. The weight member includes a spring feature that is movably coupled to a weight body so that it is movable between a first configuration and a second configuration. In the second configuration a portion of the spring feature extends outward from a side wall of the weight body. The weight mount includes an undercut and the spring feature extends into the undercut and is partially flexed by the abutment of the spring feature and a perimeter wall of weight mount when the weight member is disposed in the weight mount.
    Type: Application
    Filed: December 29, 2016
    Publication date: May 3, 2018
    Applicant: Acushnet Company
    Inventors: Jonathan Hebreo, Andrew McCarthy, Noah de la Cruz, Grant M. Martens
  • Publication number: 20180104552
    Abstract: A golf club head has a striking face. A ledge extends from the perimeter contact rim of the golf club head. The striking face is secured to the club head body proximate the rim. There is a gap between the striking face and the ledge. The inner wall's perimeter edge is disposed in the gap and is in contact with the ledge. The rear surface of the striking face is in contact with a portion of the inner wall.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Applicant: Acushnet Company
    Inventors: Jonathan Hebreo, Michael E. Franz, Marni Ines, Joshua C. Stokes, Grant M. Martens, Charles E. Golden, Uday V. Deshmukh
  • Publication number: 20180085641
    Abstract: The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and significant tungsten weight members coupled to at least the toe and a heel weight member coupled in a hosel cavity.
    Type: Application
    Filed: December 1, 2017
    Publication date: March 29, 2018
    Applicant: Acushnet Company
    Inventors: Joshua G. Breier, Jonathan Hebreo, Marni D. Ines, Grant M. Martens, Jason A. Mata, Michael E. Franz, Joshua C. Stokes
  • Publication number: 20170361177
    Abstract: A golf club head having a golf club head body and an inner wall structure. The club head body includes a back portion, a striking face, a sole, and a topline. The inner wall structure is at least partially in contact with a rear surface of the striking face. The inner wall structure also has a fixed end and an unfixed end. The golf club head is also configured such that the portion of the inner wall structure in contact with the rear surface of the striking face may slide against one another. The golf club head may also include a sole channel, and the fixed end of the inner wall structure may be attached to either a front edge or back edge of the sole channel.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 21, 2017
    Applicant: Acushnet Company
    Inventors: Jonathan Hebreo, Michael E. Franz, Marni Ines, Joshua C. Stokes, Grant M. Martens, Charles E. Golden, Uday V. Deshmukh
  • Patent number: 9839820
    Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 12, 2017
    Assignee: Acushnet Company
    Inventors: Thomas Orrin Bennett, Nick Frame, Sang Yi, Stephen S. Murphy, David S. Cornelius, Grant M. Martens, Mitchell E. Bac, Stephanie Luttrell, Darryl C. Galvan, Richard L. Cleghorn, Charles E. Golden, Noah de la Cruz, Mark C. Myrhum, Uday V. Deshmukh
  • Publication number: 20170014690
    Abstract: A golf club head including a face having a flat ball-striking surface and a body that form a flexure. The golf club head has a feature formed in a sole of the golf club head that provides a flexure.
    Type: Application
    Filed: September 8, 2016
    Publication date: January 19, 2017
    Applicant: Acushnet Company
    Inventors: John Morin, Noah de la Cruz, Nick Frame, Charles E. Golden, Jonathan Hebreo, Michael E. Franz, Grant M. Martens
  • Patent number: 9526956
    Abstract: A golf club head comprising a variable thickness profile comprising a thick central portion; a transition portion; and a thin perimeter portion; wherein said transition portion surrounds said thick central portion; wherein said thin perimeter portion surrounds said transition portion; wherein said thick central portion comprises a center, said center of said thick central portion located equidistant from a heel most portion of said thick central portion and a toe most portion of said thick central portion; wherein said center of said thick central portion is offset from said geometric center of said striking face. The present invention also discloses a flexure feature located near a frontal sole portion of the golf club head, wherein the flexure has a specific thickness profile adapted to respond to the needs of the present golf club head.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 27, 2016
    Assignee: Acushnet Company
    Inventors: Stephen S. Murphy, Darryl C. Galvan, Richard L. Cleghorn, Grant M. Martens, David S. Cornelius
  • Publication number: 20160346646
    Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 1, 2016
    Applicant: Acushnet Company
    Inventors: Thomas Orrin Bennett, Nick Frame, Sang Yi, Stephen S. Murphy, David S. Cornelius, Grant M. Martens, Mitchell E. Bac, Stephanie Luttrell, Darryl C. Galvan, Richard L. Cleghorn, Charles E. Golden, Noah de la Cruz, Mark C. Myrhum, Uday V. Deshmukh
  • Patent number: 9421433
    Abstract: A golf club head including a crown, a sole, a hosel, a face, and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency. In addition to the above, the golf club head in accordance with the present invention may also have flexures on or around the striking face portion to further improve performance.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: August 23, 2016
    Assignee: Acushnet Company
    Inventors: Grant M. Martens, Darryl C. Galvan
  • Publication number: 20160114226
    Abstract: A metalwood golf club head comprising a locally raised crown peak, wherein said crown peak defined as the highest point on an outer surface of the crown when the golf club head is grounded at prescribed lie and loft, a crown peak plane parallel to the ground plane, the crown peak plane passing through the crown peak, a crown cutoff plane parallel to the crown peak plane, the crown cutoff plane offset downwards towards said ground plane 5 mm along said y-axis from said crown peak plane, an upper crown portion located above said crown cutoff plane and defined by said crown cutoff plane and said outer surface of said crown, wherein a volume of said upper crown portion is greater than 2 cm3 and less than 7 cm3.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 28, 2016
    Applicant: ACUSHNET COMPANY
    Inventors: Gentry Ferguson, Hiroshi Kawaguchi, Charles E. Golden, Grant M. Martens, Stephanie Bezilla, Darryl C. Galvan