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Kamal Sarkar
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San Diego, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Multiple material golf club head with a polymer insert face
Patent number
6,478,690
Issue date
Nov 12, 2002
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Multiple material golf club head with a polymer insert face
Patent number
6,336,869
Issue date
Jan 8, 2002
Callaway Golf Company
Ronald K. Hettinger
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Multiple material golf club head with a polymer insert face
Patent number
6,328,661
Issue date
Dec 11, 2001
Michael A. Catania
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Bi-material golf club head having an isolation layer
Patent number
6,095,931
Issue date
Aug 1, 2000
Callaway Golf Company
Ronald K. Hettinger
A63 - SPORTS GAMES AMUSEMENTS
Patents Applications
last 30 patents
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Patent Application
Multiple material golf club head with a polymer insert face
Publication number
20020065144
Publication date
May 30, 2002
Callaway Golf Company
Richard C. Helmstetter
A63 - SPORTS GAMES AMUSEMENTS