Patents by Inventor D. Clayton Long

D. Clayton Long 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: 20200013035
    Abstract: An iron-type golf club and a method of creating the iron-type golf club including the steps of forming a club head blank having an external sacrificial region with an ESR thickness, an ESR sole portion, an ESR face portion, and an ESR leading edge portion. A finished club head is formed having a finished club head weight of less than 310 grams by machining off an ESR removed mass from at least a portion of the external sacrificial region including at least a portion of the ESR sole portion, a portion of the ESR face portion, and a portion of the ESR leading edge portion.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    Inventors: D. Clayton Long, Peter Barker
  • Patent number: 10423945
    Abstract: An iron-type golf club and a method of creating the iron-type golf club including the steps of forming a club head blank having a blank loft, a blank head weight of 345-400 grams, and an external sacrificial region having an ESR thickness, an ESR sole portion, an ESR face portion, and an ESR leading edge portion. A finished club head is formed having a finished club head weight of less than 310 grams by machining off an ESR removed mass from at least a portion of the external sacrificial region including at least a portion of the ESR sole portion, a portion of the ESR face portion, and a portion of the ESR leading edge portion.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: September 24, 2019
    Assignee: TAYLOR MADE GOLF COMPANY, INC.
    Inventors: D. Clayton Long, Peter Barker
  • Publication number: 20180185713
    Abstract: An iron-type golf club and a method of creating the iron-type golf club including the steps of forming a club head blank having a blank loft, a blank head weight of 345-400 grams, and an external sacrificial region having an ESR thickness, an ESR sole portion, an ESR face portion, and an ESR leading edge portion. A finished club head is formed having a finished club head weight of less than 310 grams by machining off an ESR removed mass from at least a portion of the external sacrificial region including at least a portion of the ESR sole portion, a portion of the ESR face portion, and a portion of the ESR leading edge portion.
    Type: Application
    Filed: August 21, 2017
    Publication date: July 5, 2018
    Inventors: D. Clayton Long, Peter Barker
  • Patent number: 8088019
    Abstract: An adjustable golf club is disclosed having a hosel with a spherical section and positioning linkage that allows the face angle of the head to be changed without changing the lie angle or rotating the shaft around its axis. The hosel is fixed in place by tightening the spherical surface of a compression nut against the spherical section of the hosel and a receiving compression cup with matching spherical surface radiuses, along with a slotted rotation prevention section consisting of two flat surfaces, a threaded linkage engaging the lower hosel piece and anchored to a tube attached to the skirt of the head. The linkage is used to threadably position the angle of the hosel piece. The invention also provides a quick and easy way to remove and replace the hosel piece along with the shaft for additional customization of the club.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 3, 2012
    Assignee: Plus 2 International, Inc.
    Inventors: D. Clayton Long, Michael R. Cummings
  • Patent number: 8007372
    Abstract: The present invention relates to a golf club head provided with a shell defining an inner cavity and having a face and a body. The face has a first or reinforcement portion with a first thickness and a second or remaining portion with a second thickness less than the first thickness. The reinforcement portion is located at the center of the face. In one embodiment, the exterior surface of the face defines at least one groove spaced from the center of the face.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: August 30, 2011
    Assignee: Cobra Golf, Inc.
    Inventors: D. Clayton Long, G. Thomas Mase
  • Publication number: 20110034272
    Abstract: The present invention relates to a golf club head provided with a shell defining an inner cavity and having a face and a body. The face has a first or reinforcement portion with a first thickness and a second or remaining portion with a second thickness less than the first thickness. The reinforcement portion is located at the center of the face. In one embodiment, the exterior surface of the face defines at least one groove spaced from the center of the face.
    Type: Application
    Filed: September 21, 2010
    Publication date: February 10, 2011
    Applicant: COBRA GOLF, INCORPORATED
    Inventors: D. Clayton Long, G. Thomas Mase
  • Patent number: 6746344
    Abstract: The present invention discloses a golf putter head with vertical and horizontal cavities.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: June 8, 2004
    Assignee: Plus 2 International, Inc.
    Inventor: D. Clayton Long
  • Patent number: 6582322
    Abstract: A metal wood golf club head adapted for attachment to a shaft is disclosed, including a shell defining an inner cavity and further including a face. The face of the club head has at least two roll radii disposed adjacent each other and defined about an alignment line on the face that extends from the heel end to the toe end. The roll radius above the alignment line is smaller than the roll radius below the alignment line. The face may also include multiple bulge radii.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: June 24, 2003
    Assignee: Acushnet Company
    Inventors: D. Clayton Long, G. Thomas Mase
  • Publication number: 20030013544
    Abstract: A metal wood golf club head adapted for attachment to a shaft is disclosed, including a shell defining an inner cavity and further including a face. The face of the club head has at least two roll radii disposed adjacent each other and defined about an alignment line on the face that extends from the heel end to the toe end. The roll radius above the alignment line is smaller than the roll radius below the alignment line. The face may also include multiple bulge radii.
    Type: Application
    Filed: September 13, 2002
    Publication date: January 16, 2003
    Inventors: D. Clayton Long, G. Thomas Mase
  • Patent number: 6454664
    Abstract: A metal wood golf club head adapted for attachment to a shaft is disclosed, including a shell defining an inner cavity and further including a face. The face of the club head has at least two roll radii disposed adjacent each other and defined about an alignment line on the face that extends from the heel end to the toe end. The roll radius above the alignment line is smaller than the roll radius below the alignment line. The face may also include multiple bulge radii.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: September 24, 2002
    Assignee: Acushnet Company
    Inventors: D. Clayton Long, G. Thomas Mase
  • Patent number: 6332848
    Abstract: Disclosed is a metal wood club head with a body having a crown a sole, a skirt and a strike face. The sole has a first cavity located rearwards and towards the heel of the club head and a second cavity located rearwards towards the toe of the club head and approximately opposite of the first cavity. The two cavities define a relatively flat ridge or land area extending from the front of the sole rearwards which forms a beam-like stiffening structure. A backweight may be attached to the body portion to redistribute mass more rearwardly in the club head and directly behind the stiffening ridge. The redistribution of the mass rearwards increases the dynamic loft and moment of inertia of the club head and its position behind the stiffening ridge enhances energy transfer upon striking of a ball. The disclosed club head is thus provided with an increased moment of inertia to resist rotation and enhanced striking efficiency without an increase in club volume.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: December 25, 2001
    Assignee: Cobra Golf Incorporated
    Inventors: D. Clayton Long, Thomas L. Crow
  • Patent number: D442245
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: May 15, 2001
    Assignee: Acushnet Company
    Inventors: Ryan Lawler Roach, D. Clayton Long
  • Patent number: D459423
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: June 25, 2002
    Assignee: Plus 2 International, Inc.
    Inventor: D. Clayton Long
  • Patent number: D532846
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 28, 2006
    Assignee: Nickent Golf Equipment Co.
    Inventors: Michael Lee, John B. Hoeflich, D. Clayton Long
  • Patent number: D464695
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: October 22, 2002
    Assignee: Plus 2 International, Inc.
    Inventor: D. Clayton Long
  • Patent number: D464696
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: October 22, 2002
    Assignee: Plus 2 International, Inc.
    Inventor: D. Clayton Long
  • Patent number: D465002
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: October 29, 2002
    Assignee: Plus 2 International, Inc.
    Inventor: D. Clayton Long
  • Patent number: D354784
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: January 24, 1995
    Assignee: MacGregor Golf Co.
    Inventors: D. Clayton Long, R. Mark Allen
  • Patent number: D406295
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: March 2, 1999
    Assignee: Cobra Golf Incorporated
    Inventor: D. Clayton Long
  • Patent number: D425158
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: May 16, 2000
    Assignee: Cobra Golf Incorporated
    Inventors: D. Clayton Long, Thomas L. Crow