5,903,827 — Single Balanced Frequency Down-converter for Direct Broadcast Satellite Transmissions and Hybrid Ring Signal Combiner
FCSI, San Jose, CA., May 11, 1999

6, 822,528 B2 — Transmission Line to Waveguide Transition Including Antenna Patch and Grounded Ring
FCSI, San Jose, CA., November 23, 2004

2005/0191985 A1 — Diode Ring Configuration for Harmonic Mixers
FCSI, San Jose, CA., September 1, 2005

8,493,154, B1 – Linearity enhancement on cascode gain block amplifier
Berex, San Jose, CA, July 23, 2013