Patents by Inventor J. Richard Humphrey

J. Richard Humphrey 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).

  • Investment casting of golf club heads with high density inserts
    Patent number: 5766091
    Abstract: Composite golf club heads having high density inserts cast by investment casting of reactive metals such as titanium that result in a high degree of bonding between the head and the insert.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: June 16, 1998
    Assignee: Selmet, Inc.
    Inventors: J. Richard Humphrey, McNamara N. Pope