Patents Represented by Attorney, Agent or Law Firm Michael A. Carania
  • Weighting system for a golf club head
    Patent number: 6364788
    Abstract: A golf club head has a weight compartment within a hollow interior, and a weight member that is injected into the weight compartment subsequent to formation of the body of the golf club head. The preferred weight member is bismuth. The golf club head has a body that has a volume between 140 cubic centimeters and 350 cubic centimeters. The body of the golf club head weighs between 140 grams and 215 grams.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: April 2, 2002
    Assignee: Callaway Golf Company
    Inventors: Richard C. Helmstetter, Roger C. Cleveland, D. Clayton Evans, J. Andrew Galloway
  • Tip end of a golf club shaft
    Patent number: D586417
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 10, 2009
    Assignee: Callaway Golf Company
    Inventors: J. Neil Hall, Brandon D. Demille, Alan Hocknell, D. Clayton Evans, Matthew T. Cackett