Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6553610 | Modular vacuum cleaning system | — | 2003-04-29 |
| 6295692 | Convertible vacuum cleaner | — | 2001-10-02 |
| D312517 | Back-carried vacuum cleaner | Edward Hohrein, II, Bret Vaterlaus, Russell Biaggne | 1990-11-27 |