Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6914557 | Micro cell architecture for mobile user tracking communication system | Donald C. D. Chang, Ying Feria, Alan Cha, Ming U. Chang, Frank A. Hagen +1 more | 2005-07-05 |
| 6868269 | Integrating coverage areas of multiple transponder platforms | Frank A. Hagen, Ying Feria, Kar W. Yung, Donald C. D. Chang | 2005-03-15 |