Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8090536 | Method and apparatus for compression of long term orbit data | Frank van Diggelen, Matt Riben, Sergei Podshivalov, Charles Abraham | 2012-01-03 |
| 8054222 | Method and apparatus for combining measurements and determining clock offsets between different global navigation satellite systems | Frank van Diggelen | 2011-11-08 |
| 7969353 | Method and apparatus for managing time in a satellite positioning system | — | 2011-06-28 |
| 7626539 | Method and apparatus for managing time in a satellite positioning system | — | 2009-12-01 |
| 7489269 | Method and apparatus for combining measurements and determining clock offsets between different global navigation satellite systems | Frank van Diggelen | 2009-02-10 |
| 7327310 | Method and apparatus for managing time in a satellite positioning system | Charles Abraham, David McMahan | 2008-02-05 |
| 7256732 | Method and apparatus for location-based triggering in an assisted satellite positioning system | Frank van Diggelen, Brendan Ludden | 2007-08-14 |