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Patent applications and USPTO patent grants for Grandfield; Walter J..The latest application filed is for "rf multiband transmitter with balun".
Patent | Date |
---|---|
RF multiband transmitter with balun Grant 8,068,795 - Bavisi , et al. November 29, 2 | 2011-11-29 |
RF Multiband Transmitter with Balun App 20100248660 - Bavisi; Amit D. ;   et al. | 2010-09-30 |
Stacked double balanced mixer circuit Grant 5,448,772 - Grandfield September 5, 1 | 1995-09-05 |
Constant propagation delay current reference Grant 4,862,015 - Grandfield August 29, 1 | 1989-08-29 |
Paging terminal apparatus with page forwarding capability and methodology thereof Grant 4,814,763 - Nelson , et al. March 21, 1 | 1989-03-21 |
Speak back paging system Grant 4,811,379 - Grandfield March 7, 1 | 1989-03-07 |
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