Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6520035 | Control system for belt sample cutters | John B. Long | 2003-02-18 |
| 5767421 | Belt conveyor cross-stream sampling system | John B. Long | 1998-06-16 |
| 5505096 | Particulate material sampling apparatus | John B. Long | 1996-04-09 |