Patents by Inventor Michael A. Bluff, Sr.

Michael A. Bluff, Sr. 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).

  • Method of making golf club head
    Patent number: 7041189
    Abstract: A golf club head has a body with a front, striking face, a rear face, an upper face and a lower face. A lightweight sole plate of glass fiber reinforced plastic material is secured across the lower face of the body.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: May 9, 2006
    Inventors: Bruce G. Caldwell, Franklin L. Gage, Michael A. Bluff, Sr., Ronald G. Holder
  • Golf club head
    Patent number: 6974393
    Abstract: A golf club head has a body with a front, striking face, a rear face, an upper face and a lower face. A lightweight sole plate of glass fiber reinforced plastic material is secured across the lower face of the body.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 13, 2005
    Assignee: CeramixGolf.com
    Inventors: Bruce G. Caldwell, Franklin L. Gage, Michael A. Bluff, Sr., Ronald G. Holder