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Victor S. Dennis
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Rancho Santa Fe, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for manufacturing a golf club head with an insert having int...
Patent number
6,632,391
Issue date
Oct 14, 2003
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Weighting member for a golf club head
Patent number
6,409,612
Issue date
Jun 25, 2002
Callaway Golf Company
D. Clayton Evans
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Combination golf club with an insert and golf ball
Patent number
6,273,832
Issue date
Aug 14, 2001
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Golf club head with an insert having integral tabs
Patent number
6,238,302
Issue date
May 29, 2001
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Weight structure on a golf club head
Patent number
5,776,010
Issue date
Jul 7, 1998
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Iron-type golf club head
Patent number
D393035
Issue date
Mar 31, 1998
Callaway Golf Company
Donald A. Bistline
D21 - Games, toys, and sports goods
Information
Patent Grant
Iron-type golf club head
Patent number
D393034
Issue date
Mar 31, 1998
Callaway Golf Company
Thomas R. Hilton
D21 - Games, toys, and sports goods
Information
Patent Grant
Iron type golf club head
Patent number
D393036
Issue date
Mar 31, 1998
Callaway Golf Company
Richard C. Helmstetter
D21 - Games, toys, and sports goods