Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8253541 | Method and apparatus for varying signals transmitted by a tag | Joseph S. Chan, Nikola Cargonja, Arthur E. Anderson, Timothy K. Brand, Ravindra U. Rajapakse | 2012-08-28 |
| 6765484 | Method and apparatus for supplying commands to a tag | Joseph S. Chan, Nikola Cargonja | 2004-07-20 |
| 6720888 | Method and apparatus for tracking mobile devices using tags | William E. Blasdell, Arthur E. Anderson, Nikola Cargonja | 2004-04-13 |
| 6542114 | Method and apparatus for tracking items using dual frequency tags | Arthur E. Anderson, Timothy K. Brand, Nikola Cargonja, Ravindra U. Rajapakse | 2003-04-01 |
| 5793290 | Area security system | Peter G. Scharpf, Hua Zong, Paul R. Ahlf, Kurt Schoeckert | 1998-08-11 |