Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523407 | Hatch cover | — | 1985-06-18 |
| 4444233 | Knife holder in woodworking machine | — | 1984-04-24 |
| D257290 | Bong base | William V. Erickson | 1980-10-07 |
| 4216785 | Water pipe or bong | William V. Erickson, Paul K. Jarvie | 1980-08-12 |
| 4198883 | Process for manufacturing bent knives | — | 1980-04-22 |