Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8847493 | Electrical module and method for illuminating a high intensity discharge (HID) lamp on a vehicle | — | 2014-09-30 |
| 7679552 | System for standard positioning service and precise positioning service cooperative operation | Kenneth M Spratlin | 2010-03-16 |
| 7480568 | Method for encrypted and unencrypted cooperative operation | Kenneth M Spratlin | 2009-01-20 |
| 7283090 | System for standard positioning service and precise positioning service cooperative operation | Ken Spratlin | 2007-10-16 |
| 6934631 | Method for standard positioning service and precise positioning service cooperative operation | Kenneth M Spratlin | 2005-08-23 |
| 6154170 | Enhanced attitude determination system using satellite navigation receiver with antenna multiplexing | Yiming Yu | 2000-11-28 |
| 5268695 | Differential phase measurement through antenna multiplexing | Clark E. Cohen | 1993-12-07 |