FH

Frank A. Hagen

DI Directv: 5 patents #1 of 42Top 3%
📍 Breitscheid, CA: #1 of 1 inventorsTop 100%
Overall (2004): #9,482 of 270,089Top 4%
5
Patents 2004

Issued Patents 2004

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6785553 Position location of multiple transponding platforms and users using two-way ranging as a calibration reference for GPS Donald C. D. Chang, Kar W. Yung, David C. H. Cheng, Ming U. Chang 2004-08-31
6762718 Wavefront-projection beamformer Donald C. D. Chang, Kar W. Yung, Weizheng Wang 2004-07-13
6763242 Resource assignment system and method for determining the same Ying Feria, Ming U. Chang, Donald C. D. Chang, Alan Cha 2004-07-13
6756937 Stratospheric platforms based mobile communications architecture Donald C. D. Chang, Ming U. Chang, Ying Feria, Weizheng Wang, Alan Cha +1 more 2004-06-29
6757546 Synchronization method and apparatus for multi-platform communication system Kar W. Yung, Ying Feria, Donald C. D. Chang 2004-06-29