WB

Winfried Birth

SA Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #2,273,854 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5678199 Transceiver with controlled transmit/receive impedance switching device Christopher B. Marshall, Erich Saur, Holger Morbitzer 1997-10-14
4879530 Monolithically integratable phase shifter VCO Wilhelm Wilhelm 1989-11-07