Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7360275 | Dirt separation system for a vacuum cleaner | David M. J. Allgeier, Erik D. Lesco, Jerry L. Balzer | 2008-04-22 |
| 6875255 | Removable dirt separation system for a vacuum cleaner | William G. Alford, Jerry L. Balzer, Greg A. Bilek, Joseph A. Garisto, Erik D. Lesco +3 more | 2005-04-05 |