Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7489270 | GNSS line bias measurement system and method | David G. Lawrence, Kurt R. Zimmerman, Paul Montgomery | 2009-02-10 |
| 7023381 | Multi-frequency pseudolites for carrier-based differential-position determination | Kurt R. Zimmerman, Clark E. Cohen, David G. Lawrence, Walter Melton, Paul Montgomery | 2006-04-04 |
| 6882314 | Carrier-based differential-position determination using multi-frequency pseudolites | Kurt R. Zimmerman, Clark E. Cohen, David G. Lawrence, Walter Melton, Paul Montgomery | 2005-04-19 |
| RE37256 | System and method for generating precise position determinations | Clark E. Cohen, Bradford W. Parkinson, John D. Powell, David G. Lawrence, Boris Pervan | 2001-07-03 |
| 5572218 | System and method for generating precise position determinations | Clark E. Cohen, Bradford W. Parkinson, John D. Powell, David G. Lawrence, Boris Pervan | 1996-11-05 |