Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D673981 | Asphalt screed | Jason W. Kopacz, Joseph P. Spree, Tobin D. Rasmusson, Tony Steinhagen, Brett Wayne Engel +1 more | 2013-01-08 |
| D672790 | Asphalt screed | Jason W. Kopacz, Joseph P. Spree, Tobin D. Rasmusson, Tony Steinhagen, Brett Wayne Engel +1 more | 2012-12-18 |