Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10370807 | Collapsible perimeter barricade | Eric M. Stevens, Leo F. Stanko, Mark A. Stevens, Nevin J. Zimmerly | 2019-08-06 |
| D702581 | Stand barricade | Marc E. Christensen | 2014-04-15 |
| 6298252 | Oximeter sensor with encoder connected to detector | Michael Bernstein | 2001-10-02 |
| 5724775 | Multi-pieced, portable projection dome and method of assembling the same | Richard W. Zobel, Jr., David T. Bennett, Raymond L. Idaszak | 1998-03-10 |
| 5676088 | Molded boat hull with integrally contained areas of localized reinforcement | George H. Blaisdell | 1997-10-14 |
| 5666902 | Moulded boat hull with integrally contained reinforced inserts | Mark Stephen James White | 1997-09-16 |