Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876524 | Six-axis joystick control | — | 1989-10-24 |
| 4521225 | Instrument and process for testing landfill gas for chlorinated hydrocarbons | John A. Pettus, David K. Abner | 1985-06-04 |