Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9068847 | System and method for collaborative navigation | Kailash Krishnaswamy, Wayne A. Soehren | 2015-06-30 |
| 8670932 | Correlation position determination | — | 2014-03-11 |
| 8582086 | Range measurement device | Michael Ray Elgersma | 2013-11-12 |
| 8554478 | Correlation position determination | — | 2013-10-08 |
| 8397181 | Method and apparatus for marking a position of a real world object in a see-through display | Duke Buster | 2013-03-12 |
| 8334893 | Method and apparatus for combining range information with an optical image | — | 2012-12-18 |
| 8174562 | Stereo camera having 360 degree field of view | — | 2012-05-08 |
| 7948403 | Apparatus and method for aligning an aircraft | — | 2011-05-24 |
| 7852463 | Range measurement device | Michael Ray Elgersma | 2010-12-14 |
| 7778111 | Methods and systems for underwater navigation | Wesley J. Hawkinson, Kevin Sweeney | 2010-08-17 |
| 6860023 | Methods and apparatus for automatic magnetic compensation | Mark T. Manfred, James E. Lenz, Kevin D. Vanderwerf, Lawrence C. Vallot | 2005-03-01 |
| 6826476 | Apparatus for improved integrity of wide area differential satellite navigation systems | Mark A. Ahlbrecht | 2004-11-30 |
| 5631656 | Fail safe system with common mode avoidance | Robert Girts | 1997-05-20 |
| 5608393 | Differential ground station repeater | — | 1997-03-04 |
| 5557284 | Spoofing detection system for a satellite positioning system | — | 1996-09-17 |
| 5504492 | Look ahead satellite positioning system position error bound monitoring system | Kim A. Class | 1996-04-02 |
| 5361212 | Differential GPS landing assistance system | Kim A. Class, Brett J. Helgeson | 1994-11-01 |