Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4976924 | Automated thermal desorption unit | John M. McAndless, James Robert Hancock, Donald B. Barnett, Orville Olm, John Maybank | 1990-12-11 |
| 4869117 | """Polymer packed minitube vapor sampling system""" | John M. McAndless, James Robert Hancock, Donald B. Barnett, Orville Olm, John Maybank | 1989-09-26 |