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Stephen M. Thompson
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San Diego, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Racquetball racquet with increased hitting area improved racquetbal...
Patent number
RE34067
Issue date
Sep 15, 1992
Ektelon
Raymond L. Mortvedt
273 - Amusement devices: games
Information
Patent Grant
Racquetball raquet with increased hitting area
Patent number
RE34068
Issue date
Sep 15, 1992
Ektelon
Raymond L. Mortvedt
273 - Amusement devices: games
Information
Patent Grant
Racquetball racquet
Patent number
D290633
Issue date
Jun 30, 1987
Raymond L. Mortvedt
D21 - Games, toys, and sports goods
Information
Patent Grant
Racquetball racquet
Patent number
D290487
Issue date
Jun 23, 1987
Ektelon
Raymond L. Mortvedt
D21 - Games, toys, and sports goods
Information
Patent Grant
Racquetball racquet with increased hitting area
Patent number
4,618,148
Issue date
Oct 21, 1986
Ektelon
Raymond L. Mortvedt
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Racquetball racquet with increased hitting area
Patent number
4,531,738
Issue date
Jul 30, 1985
Ektelon
Raymond L. Mortvedt
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Electromyographic diagnostic device
Patent number
4,448,203
Issue date
May 15, 1984
"A" Company
Eugene Williamson
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE