Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5395409 | Dust collecting apparatus having reverse pulse filter cleaning capability | William J. Klimczak | 1995-03-07 |
| 5272943 | Apparatus for removing and replacing spikes in golf shoes | — | 1993-12-28 |
| 4955996 | Top loading dust collector | William J. Klimczak | 1990-09-11 |
| 4344184 | Wireless microphone | — | 1982-08-10 |