Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550546 | Spindle lock and chipping mechanism for hammer drill | John E. Nemazi, Ralph E. Smith | 2003-04-22 |
| D460469 | Laser arbor | Siu Sum Yue, William E. Kaiser | 2002-07-16 |
| 6223833 | Spindle lock and chipping mechanism for hammer drill | John E. Nemazi, Ralph E. Smith | 2001-05-01 |
| 5690451 | Depth stop assembly for a portable electric drill | Michael E. Sheriff | 1997-11-25 |
| 5653294 | Impact mechanism for a hammer drill | — | 1997-08-05 |
| 5447205 | Drill adjustment mechanism for a hammer drill | — | 1995-09-05 |
| D322016 | Right angle sander/grinder | Philip J. Snoke, Devin Lee Moore | 1991-12-03 |
| 4268057 | Control device for three-point hitch | Roger Engelmann | 1981-05-19 |