Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163321 | Universal canister flush valve | Andrew L. Smith, Billy Jack Ahola, Donald G. Bogenschuetz, Lawrence E. Duwell, Peter W. Swart +9 more | 2024-12-10 |
| 11286655 | Universal canister flush valve | Andrew L. Smith, Billy Jack Ahola, Donald G. Bogenschuetz, Lawrence E. Duwell, Peter W. Swart +9 more | 2022-03-29 |
| 7318385 | Boat lift | — | 2008-01-15 |
| 7267066 | Boat lift | — | 2007-09-11 |
| 7156030 | Boat lift | Alan A. Derner, Brian P. Derner, Richard B. Derner | 2007-01-02 |
| 7051665 | Boat lift | Alan A. Derner, Brian P. Derner, Richard B. Derner | 2006-05-30 |
| 6983707 | Boat lift | Alan A. Derner, Brian P. Derner, Richard B. Derner | 2006-01-10 |
| 6907835 | Boat lift | Alan A. Derner, Brian P. Derner, Richard B. Derner | 2005-06-21 |