| 12493126 |
High-performance GNSS using a LEO constellation spectrum underlay |
— |
2025-12-09 |
|
| 11073622 |
Performance and cost global navigation satellite system architecture |
— |
2021-07-27 |
|
| 9618625 |
System and method for continuous carrier wave reconstruction |
Isaac T. Miller, William J. Bencze, Robert W. Brumley, Brent M. Ledvina, Mark L. Psiaki +1 more |
2017-04-11 |
$57,299,000 |
| 9360557 |
Systems, methods, devices and subassemblies for rapid-acquisition access to high-precision positioning, navigation and/or timing solutions |
Isaac T. Miller, Robert W. Brumley, William J. Bencze, Brent M. Ledvina, Thomas J. Holmes +1 more |
2016-06-07 |
$71,315,000 |
| 8296051 |
Generalized high performance navigation system |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2012-10-23 |
$9,059,000 |
| 8179312 |
Precise absolute time transfer from a satellite system |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2012-05-15 |
$15,940,000 |
| 8160576 |
LEO-based positioning system for indoor and stand-alone navigation |
David A. Whelan, Greg Gutt, Barton G. Ferrell |
2012-04-17 |
$18,323,000 |
| 8035558 |
Precise absolute time transfer from a satellite system |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2011-10-11 |
$9,938,000 |
| 8019541 |
Real-time data aiding for enhanced GPS performance |
Bart Ferrell, Greg Gutt, David A. Whelan |
2011-09-13 |
$5,450,000 |
| 7978130 |
Practical method for upgrading existing GNSS user equipment with tightly integrated Nav-Com capability |
Todd E. Humphreys, Brent M. Ledvina, William J. Bencze, Mark L. Psiaki, Bryan T. Galusha |
2011-07-12 |
|
| 7904243 |
Real-time data aiding for enhanced GPS performance |
Bart Ferrell, Greg Gutt, David A. Whelan |
2011-03-08 |
$11,600,000 |
| 7583225 |
Low earth orbit satellite data uplink |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2009-09-01 |
$19,848,000 |
| 7579987 |
Low earth orbit satellite providing navigation signals |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2009-08-25 |
$12,915,000 |
| 7554481 |
Localized jamming of navigation signals |
David A. Whelan, Robert W. Brumley, Gregory M. Gutt, Barton G. Ferrell |
2009-06-30 |
$22,688,000 |
| 7489926 |
LEO-based positioning system for indoor and stand-alone navigation |
David A. Whelan, Greg Gutt, Barton G. Ferrell |
2009-02-10 |
$28,146,000 |
| 7372400 |
Methods and apparatus for a navigation system with reduced susceptibility to interference and jamming |
Robert W. Brumley, Mark L. Psiaki, Gregory M. Gutt, William J. Bencze, Brent M. Ledvina +2 more |
2008-05-13 |
$36,612,000 |
| 7042392 |
GPS access system and method |
David A. Whelan, Gregory M. Gutt, Barton G. Ferrell |
2006-05-09 |
$33,662,000 |
| 7023381 |
Multi-frequency pseudolites for carrier-based differential-position determination |
Kurt R. Zimmerman, David G. Lawrence, Walter Melton, Henry Stewart Cobb, Paul Montgomery |
2006-04-04 |
|
| 6882314 |
Carrier-based differential-position determination using multi-frequency pseudolites |
Kurt R. Zimmerman, David G. Lawrence, Walter Melton, Henry Stewart Cobb, Paul Montgomery |
2005-04-19 |
|
| 6762714 |
Low cost system and method for making dual band GPS measurements |
David G. Lawrence, Stewart Cobb, Paul Montgomery, Miro Samek, Kurt R. Zimmerman +3 more |
2004-07-13 |
|
| 6570534 |
Low cost system and method for making dual band GPS measurements |
David G. Lawrence, Stewart Cobb, Paul Montgomery, Miro Samek, Kurt R. Zimmerman +3 more |
2003-05-27 |
|
| 6373432 |
System using leo satellites for centimeter-level navigation |
Matthew Rabinowitz, Bradford W. Parkinson, David G. Lawrence |
2002-04-16 |
|
| RE37256 |
System and method for generating precise position determinations |
Bradford W. Parkinson, John D. Powell, David G. Lawrence, Boris Pervan, Henry Stewart Cobb |
2001-07-03 |
|
| 5583513 |
System and method for generating precise code based and carrier phase position determinations |
— |
1996-12-10 |
|
| 5572218 |
System and method for generating precise position determinations |
Bradford W. Parkinson, John D. Powell, David G. Lawrence, Boris Pervan, Henry Stewart Cobb |
1996-11-05 |
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