Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6317920 | Vacuum cleaner with above-floor cleaning tool | David M. Brickner, John S. Murphy, Michael F. Wright | 2001-11-20 |
| 6209168 | Combination brushroll and nozzle inlet control mechanism | David M. Brickner, John S. Murphy, Michael F. Wright | 2001-04-03 |