Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342853 | System for using differential GPS receivers with autopilot systems for category III precision approaches | Rudolph M. Kalafus | 2002-01-29 |
| RE37408 | Reduction of time to first fix in an SATPS receiver | Peter Van Wyck Loomis, Ralph F. Eschenbach, Chung Y. Lau | 2001-10-16 |
| 6055477 | Use of an altitude sensor to augment availability of GPS location fixes | Paul W. McBurney | 2000-04-25 |
| 5945943 | System for using differential GPS receivers with autopilot systems for category III precision approaches | Rudolph M. Kalafus | 1999-08-31 |
| 5917444 | Reduction of time to first fix in an SATPS receiver | Peter Van Wyck Loomis, Ralph F. Eschenbach, Chung Y. Lau | 1999-06-29 |
| 5808581 | Fault detection and exclusion method for navigation satellite receivers | Martin Beckmann | 1998-09-15 |
| 5646857 | Use of an altitude sensor to augment availability of GPS location fixes | Paul W. McBurney | 1997-07-08 |
| 4970523 | Differential doppler velocity GPS receiver | Ralph F. Eschenbach | 1990-11-13 |
| 4847862 | Global positioning system course acquisition code receiver | Ralph F. Eschenbach | 1989-07-11 |