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Helge O. Granberg
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Phoenix, AZ, US
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last 30 patents
Information
Patent Grant
Broadband RF transformer
Patent number
5,015,972
Issue date
May 14, 1991
Motorola, Inc.
Lawrence F. Cygan
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for paralleling power field effect transistors...
Patent number
4,899,116
Issue date
Feb 6, 1990
Signal One Corporation
Don P. Roehrs
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for paralleling power field effect transistors...
Patent number
4,733,194
Issue date
Mar 22, 1988
Signal One Corporation
Don P. Roehrs
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High power RF transistor assembly
Patent number
4,639,760
Issue date
Jan 27, 1987
Motorola, Inc.
Helge O. Granberg
H01 - BASIC ELECTRIC ELEMENTS