Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6206247 | Rotary valve for particulate materials | — | 2001-03-27 |
| 6062439 | Rotary valve with improved sealing means | Richard W. Ambs, Anthony Boroch, Curtiss F. Wykoff | 2000-05-16 |
| 5413256 | Valve rotor | Andrew Mitchell | 1995-05-09 |
| 5409147 | Cantilevered rotary valve | — | 1995-04-25 |
| 5246655 | Method of making thermoplastic valve rotors | Andrew Mitchell | 1993-09-21 |
| 5076317 | Rotor handling system for rotary valves | Fred C. DeWire, James E. Mothersbaugh, Robert F. Flook | 1991-12-31 |
| 5070910 | Diverter valve with improved sealing means | James E. Mothersbaugh, Andrew Mitchell | 1991-12-10 |