Patents by Inventor Derek W. Holman

Derek W. Holman 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).

  • Sole plate design for a golf club head
    Patent number: D436389
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: January 16, 2001
    Assignee: Adams Golf IP, L.P.
    Inventors: Byron H. Adams, Richard H. Murltand, Robert M. Boyd, Michael S. Burnett, Christopher A. Gavey, Derek W. Holman, Brian W. Johansen
  • Golf club head
    Patent number: D429511
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: August 15, 2000
    Assignee: Adams Golf IP, L.P.
    Inventors: Byron H. Adams, Richard H. Murtland, Robert M. Boyd, Michael S. Burnett, Christopher A. Gavey, Derek W. Holman, Brian W. Johansen