Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11091885 | Methods and apparatus for repairing road surfaces | Mark Butzer | 2021-08-17 |
| 10480129 | Methods and apparatus for repairing road surfaces | Mark Butzer | 2019-11-19 |
| 8491218 | Pavement crack router | Stephen R. Johnson | 2013-07-23 |
| 8210770 | Boom assembly for holding hose outputting liquefied paving material | — | 2012-07-03 |