Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7515068 | Vehicle axle sensor | — | 2009-04-07 |
| 6744378 | Roadway sensor with improved insulated signal carrying wires | — | 2004-06-01 |
| 6417785 | Permanent in-pavement roadway traffic sensor system | — | 2002-07-09 |
| 6326902 | Residual charge-effect traffic sensor | — | 2001-12-04 |
| 6300883 | Traffic recording system | David A. Tyburski, Mark A. Curio | 2001-10-09 |
| 6130627 | Residual charge effect sensor | Robert W. Shillady | 2000-10-10 |
| 5835027 | Residual charge effect traffic sensor | Robert W. Shillady | 1998-11-10 |
| 5463385 | Roadway sensor systems | — | 1995-10-31 |
| 5450077 | Roadway sensor systems | — | 1995-09-12 |
| 5448232 | Roadway sensors and method of installing same | — | 1995-09-05 |
| 4912471 | Interrogator-responder communication system | Robert W. Shillady | 1990-03-27 |
| RE31692 | Combined magnetic optical character reader | Donald W. Russell, Brian D. Mayberry, Joseph R. Kenney | 1984-10-02 |
| 4258430 | Information collection and storage system with removable memory | — | 1981-03-24 |