Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4590635 | Machine for floor maintenance | Hartwell F. Tucker, Dennis Ross, Jeffrey Knirck | 1986-05-27 |
| 4567391 | Permanent magnet disc rotor machine | Hartwell F. Tucker, Dennis Ross, Jeffrey Knirck | 1986-01-28 |
| D282110 | Machine for floor maintenance | Hartwell F. Tucker, Dennis Ross | 1986-01-07 |
| 4443906 | Machine for floor maintenance | Hartwell F. Tucker, Dennis Ross, Jeffrey Knirck | 1984-04-24 |
| 4330897 | Floor machine | Dennis Ross, Hartwell F. Tucker | 1982-05-25 |