Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7095336 | System and method for providing pedestrian alerts | Darrell F. Greenlee, Richard D. Blomberg | 2006-08-22 |
| 6493650 | Device for automatic documentation of crash scenes | Darrell F. Greenlee | 2002-12-10 |
| 5534875 | Attitude determining system for use with global positioning system | Debra L. Diefes, Leopold C. Fan | 1996-07-09 |
| 5506588 | Attitude determining system for use with global positioning system, and laser range finder | Debra L. Diefes, Leopold C. Fan | 1996-04-09 |
| 5446465 | Satellite location and pointing system for use with global positioning system | Debra L. Diefes, Leopold C. Fan | 1995-08-29 |
| 5351640 | Portable manual boat hull cleaner | Robert V. Attaway | 1994-10-04 |
| 4692089 | Attachment for a back hoe bucket | Herman R. Rodgers | 1987-09-08 |