Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D754875 | Cylindrical barrier for shoring an excavated hole | — | 2016-04-26 |
| D729901 | Nozzle for a garden hose | — | 2015-05-19 |
| 5906358 | Monitoring operation of a winch | Jan Vetesnik | 1999-05-25 |
| 5722113 | Vacuum truck with air filter formed from lengths of chain | — | 1998-03-03 |
| 5720309 | Sewer cleaning nozzle | — | 1998-02-24 |
| 5664766 | Winch with reverse rotation protection | — | 1997-09-09 |
| 5617963 | Apparatus for mounting an appliance at an opening | Jan Vetesnik | 1997-04-08 |
| 5618075 | Manual grasping and lifting device for stones and the like | — | 1997-04-08 |
| 5344121 | Safety winch | — | 1994-09-06 |
| 5341898 | Foldable boom for mounting on a roof of a building | — | 1994-08-30 |
| 4838439 | Hoist for use at a manhole | — | 1989-06-13 |