DC

Donald C. D. Chang

DI Directv: 2 patents #18 of 118Top 20%
SS Spatial Digital Systems: 1 patents #1 of 1Top 100%
📍 Thousand Oaks, CA: #29 of 241 inventorsTop 15%
🗺 California: #4,350 of 41,698 inventorsTop 15%
Overall (2011): #50,366 of 364,097Top 15%
3
Patents 2011

Issued Patents 2011

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8035562 Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver 2011-10-11
7929984 Multiple basestation communication system having adaptive antennas Wah L. Lim, Ming U. Chang 2011-04-19
7890052 Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection Alan Cha, Jacqueline C. Chen, Frank A. Hagen 2011-02-15