Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481048 | Three tank carpet spotter | Douglas Hauff, Steven Graham Williams | 2002-11-19 |
| 4782870 | Portable wood splitter | — | 1988-11-08 |
| 4770218 | Block stripper and stroke stop for wood splitters | — | 1988-09-13 |
| 4700759 | Wood splitter | — | 1987-10-20 |
| D255123 | Contact printing cabinet | — | 1980-05-27 |