Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800906 | Washing apparatus | Kenneth M. Johnson | 1989-01-31 |
| D297578 | Heated fluid high pressure washer | Kenneth M. Johnson | 1988-09-06 |
| 4646820 | Apparatus for producing a heating fluid | Kenneth M. Johnson | 1987-03-03 |