Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11188529 | Autonomous generation of a graph query language interface on top of an application programming interface | John E. Wittern, Jim A. Laredo | 2021-11-30 |
| 7890052 | Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection | Donald C. D. Chang, Jacqueline C. Chen, Frank A. Hagen | 2011-02-15 |
| 7317916 | Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection | Donald C. D. Chang, Jacqueline C. Chen, Frank A. Hagen | 2008-01-08 |
| 7257418 | Rapid user acquisition by a ground-based beamformer | Donald C. D. Chang, Ying Feria | 2007-08-14 |
| 6941138 | Concurrent communications between a user terminal and multiple stratospheric transponder platforms | Donald C. D. Chang | 2005-09-06 |
| 6914557 | Micro cell architecture for mobile user tracking communication system | Donald C. D. Chang, Ying Feria, Weizheng Wang, Ming U. Chang, Frank A. Hagen +1 more | 2005-07-05 |
| 6895217 | Stratospheric-based communication system for mobile users having adaptive interference rejection | Donald C. D. Chang | 2005-05-17 |
| 6763242 | Resource assignment system and method for determining the same | Ying Feria, Ming U. Chang, Donald C. D. Chang, Frank A. Hagen | 2004-07-13 |
| 6756937 | Stratospheric platforms based mobile communications architecture | Donald C. D. Chang, Ming U. Chang, Ying Feria, Weizheng Wang, Kar W. Yung +1 more | 2004-06-29 |
| 6751458 | Architecture utilizing frequency reuse in accommodating user-link and feeder-link transmissions | Weizheng Wang, Donald C. D. Chang, Ming U. Chang, Ying Feria | 2004-06-15 |
| 6549166 | Four-port patch antenna | Arun Bhattacharyya, James P. McKay | 2003-04-15 |
| 6424299 | Dual hybrid-fed patch element for dual band circular polarization radiation | Arun Bhattacharyya | 2002-07-23 |
| 6388615 | Micro cell architecture for mobile user tracking communication system | Donald C. D. Chang, Ying Feria, Weizheng Wang, Ming U. Chang, Frank A. Hagen +1 more | 2002-05-14 |