Issued Patents All Time
Showing 76–88 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6703972 | Apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris | — | 2004-03-09 |
| 6651000 | Method and apparatus for generating and distributing satellite tracking information in a compact format | Charles Abraham, James W. LaMance | 2003-11-18 |
| 6590530 | Method and apparatus for enhancing a global positioning system with a terrain model | Charles Abraham | 2003-07-08 |
| 6587789 | Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris | — | 2003-07-01 |
| 6560534 | Method and apparatus for distributing satellite tracking information | Charles Abraham, James W. LaMance | 2003-05-06 |
| 6542820 | Method and apparatus for generating and distributing satellite tracking information | James W. LaMance, Charles Abraham | 2003-04-01 |
| 6510387 | Correction of a pseudo-range model from a GPS almanac | Donald L. Fuchs, Charles Abraham | 2003-01-21 |
| 6487499 | Method for adjusting a pseudo-range model | Donald L. Fuchs, Charles Abraham | 2002-11-26 |
| 6484097 | Wide area inverse differential GPS | Donald L. Fuchs, Charles Abraham | 2002-11-19 |
| 6453237 | Method and apparatus for locating and providing services to mobile devices | Donald L. Fuchs, Charles Abraham | 2002-09-17 |
| 6429814 | Method and apparatus for enhancing a global positioning system with terrain model | Charles Abraham | 2002-08-06 |
| 6417801 | Method and apparatus for time-free processing of GPS signals | — | 2002-07-09 |
| 6411892 | Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris | — | 2002-06-25 |