Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7181804 | Removable dirt cup assembly with external filter | Danielle Hafling, Joel Erik Hitzelberger, Nathan A. Gogel, Alan T. Pullins | 2007-02-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7181804 | Removable dirt cup assembly with external filter | Danielle Hafling, Joel Erik Hitzelberger, Nathan A. Gogel, Alan T. Pullins | 2007-02-27 |