Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7377007 | Vacuum cleaner with detachable vacuum module | — | 2008-05-27 |
| 7188388 | Vacuum cleaner with detachable cyclonic vacuum module | Douglas J. Medema, David E. McDowell | 2007-03-13 |