Patents Represented by Attorney, Agent or Law Firm Michael E. Catania
  • Golf club and weighting system
    Patent number: 6210290
    Abstract: A golf club head having a defined internal cavity, and a golf club head containing a bi-material weight having a nonhomogeneous structure. A method to add the bi-material weight to the golf club entails heating, vibration and cooling to produce the nonhomogeneous structure.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: April 3, 2001
    Assignee: Callaway Golf Company
    Inventors: Joel B. Erickson, John G. Guard, James F. Dooley, M. Grace Hohn Pimentel, Thomas J. DiMarco