Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6746501 | Vacuum bag collar with rotatable closure | Dennis A. Boehmer | 2004-06-08 |
| 6733555 | Vacuum bag collar | — | 2004-05-11 |
| D468798 | Filter cartridge housing | Johnnie H. Copley | 2003-01-14 |
| D456877 | Filter cartridge housing | Johnnie H. Copley | 2002-05-07 |