Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8102325 | GNSS antenna with selectable gain pattern, method of receiving GNSS signals and antenna manufacturing method | Xiaoping Wen | 2012-01-24 |
| 7671791 | GPS receiver for use with differential-GPS signals | — | 2010-03-02 |
| 7668228 | Apparatus for and method of correlating to rising chip edges | Patrick C. Fenton, Graham Purves | 2010-02-23 |
| 7656349 | Enhancement of GNSS position determination in poor signal propagation environments | — | 2010-02-02 |
| 7501978 | Short-distance ranging system | — | 2009-03-10 |
| 7400956 | Satellite position and heading sensor for vehicle steering control | Michael L. Whitehead, John A. McClure | 2008-07-15 |
| 6992624 | Attitude determination system using null-steered array | — | 2006-01-31 |
| 6469663 | Method and system for GPS and WAAS carrier phase measurements for relative positioning | Michael L. Whitehead | 2002-10-22 |
| 6111549 | Flexible circuit antenna and method of manufacture thereof | — | 2000-08-29 |
| 5200756 | Three dimensional microstrip patch antenna | — | 1993-04-06 |
| 4887069 | Perimeter intrusion detection system with block ranging capabilities | Melvin C. Maki, Edward L. Adams | 1989-12-12 |
| 4879544 | Intrusion detection system | Melvin C. Maki | 1989-11-07 |