Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8590098 | Vacuum hose storage system | James F. Smith | 2013-11-26 |
| 7945990 | Vacuum hose storage system | Shawn C. Metz, Darrell V. Nieschwitz, James F. Smith | 2011-05-24 |
| 7761957 | Vacuum canister with dual removable motors | — | 2010-07-27 |
| 7434657 | Acoustic foam sound reducer for vacuum power unit | Darrell V. Nieschwitz | 2008-10-14 |
| 7080425 | Vacuum canister and mounting bracket for use therewith | James F. Smith, Darrell V. Nieschwitz | 2006-07-25 |
| 7051398 | Vacuum canister with auxiliary intake valve | James F. Smith, Darrell V. Nieschwitz | 2006-05-30 |
| D494331 | Acoustic foam sound reducer for vacuum power unit | Darrell V. Nieschwitz | 2004-08-10 |