Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5727276 | Vacuum sweeper brush and concentric roller pin | William P. Brundula | 1998-03-17 |
| 5619768 | Vacuum sweeper brush and concentric roller pin | William P. Brundula | 1997-04-15 |
| 5495634 | Vacuum sweeper roller brush | William P. Brundula | 1996-03-05 |
| 5452490 | Brushroll with dual row of bristles | David M. Wert | 1995-09-26 |