Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10016737 | Withdrawal system | Martin Evans | 2018-07-10 |
| 10018423 | Heat exchanger | Martin Evans | 2018-07-10 |
| 8146414 | Material withdrawal apparatus and methods of regulating material inventory in one or more units | Martin Evans, Ronald Butterfield | 2012-04-03 |
| 8092756 | Catalyst withdrawal apparatus and method for regulating catalyst inventory in a unit | Martin Evans | 2012-01-10 |
| 5948021 | Hydraulic cylinders for limb gait control | — | 1999-09-07 |
| 5168865 | Knee brace with pivot lock | Steve Lamb | 1992-12-08 |