Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5415496 | Stabilization of pre-existing landfills | — | 1995-05-16 |
| 5362181 | In place stabilization of pre-existing landfills | — | 1994-11-08 |
| 5255793 | Separator for a material reducer | — | 1993-10-26 |
| 4961542 | Material reducer | Todd Den Besten | 1990-10-09 |
| 4588233 | Padded rail plate for tracked vehicles | — | 1986-05-13 |
| 4462638 | Mining bit with improved split ring retainer | Cletis P. Pinkerton | 1984-07-31 |