Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6065904 | Soil compaction apparatus | Eric Johnstone Cook | 2000-05-23 |
| 6004076 | Method and apparatus for monitoring soil compaction | Eric Johnstone Cook | 1999-12-21 |
| 5562365 | Impact roller incorporating soil leveler | — | 1996-10-08 |
| 4422795 | Compactor | — | 1983-12-27 |