Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7128303 | Fan mounting spacer assembly | Robert G. Penlesky | 2006-10-31 |
| D521622 | Range hood | Brian R. Wellnitz, David H. Roland, Brett Vladika | 2006-05-23 |
| D482769 | Range hood | Brian R. Wellnitz, David H. Roland, Brett Vladika | 2003-11-25 |
| D473297 | Range hood | Brian R. Wellnitz, David H. Roland, Brett Vladika | 2003-04-15 |
| D450829 | Range hood | Brian R. Wellnitz, David H. Roland, Brett Vladika | 2001-11-20 |