Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5983434 | Rotary bristle tool with preferentially oriented bristles | Dean S. Holmes, David E. Johnson, Dennis W. Wilson | 1999-11-16 |
| D378003 | Molded radial brush | David E. Johnson | 1997-02-11 |