Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6942799 | Bioreactor | Diego Corcho-Sanchez, David Nicholas Lerner, Richard John Stephenson | 2005-09-13 |
| 5820538 | Tool cassette holder | — | 1998-10-13 |
| 5769768 | Tool gripping apparatus | Richard Polacek | 1998-06-23 |
| 5716310 | Tool change apparatus | Richard Polacek, Dennis M. Pumphrey | 1998-02-10 |
| 5626217 | Stack pusher | W. Vernon Smith | 1997-05-06 |
| 4742803 | Reciprocatory internal combustion engine | Christopher J. W. Chiles | 1988-05-10 |