Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6816782 | Apparatus, systems and methods for navigation data transfer between portable devices | Thomas H. Walters, Jay Dee Krull | 2004-11-09 |
| 6768450 | System and method for wirelessly linking a GPS device and a portable electronic device | Thomas H. Walters | 2004-07-27 |
| 6492941 | Combined global positioning system receiver and radio | Lawrence W. Beason, Thomas H. Walters | 2002-12-10 |
| 6373430 | Combined global positioning system receiver and radio | Lawrence W. Beason, Thomas H. Walters | 2002-04-16 |
| 6128515 | Combined global positioning and wireless telephone device | Robert M. Kalis, Dale R. Langner | 2000-10-03 |
| D395250 | Combined hand held communication receiver and GPS device | Dale R. Langer, Robert M. Kalis | 1998-06-16 |
| 5278907 | Analog scrambling with continuous synchronization | Kenneth Leo Snyder | 1994-01-11 |
| 5126699 | Digitally compensated modulation system for frequency synthesizers | — | 1992-06-30 |