Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451408 | Retroreflective article | Dale H. Haunschild, John L. Ethen, Mark D. Zender, Larry K. Stump | 2002-09-17 |
| 5194113 | Process for making conformable thermoplastic marking sheet | James E. Lasch, Gregory F. Jacobs, Terry R. Bailey, Louis C. Belisle, Roger R. Kult +1 more | 1993-03-16 |
| 5124178 | Skid-resistant surface marking material | James A. Laird | 1992-06-23 |
| 5094902 | Skid-resistant surface marking material | James A. Laird | 1992-03-10 |
| 5053253 | Skid-resistant pavement markings | James A. Laird | 1991-10-01 |
| 4937127 | Skid-resistant pavement markings | James A. Laird | 1990-06-26 |