Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6186604 | Tractor endless tread | — | 2001-02-13 |
| 6030057 | Tractor endless tread | — | 2000-02-29 |
| 5741052 | Tractor endless tread | — | 1998-04-21 |
| 5527099 | Tunnel boring machine anchor shoe structure and process of operating a tunnel boring machine having such anchor shoe structure | — | 1996-06-18 |
| 5005911 | Quadrishoe tunnel boring machine | — | 1991-04-09 |
| 4915453 | Floating shoe tunnel boring machine and boring process | — | 1990-04-10 |
| 4784438 | Tunneling machine rotatable member | — | 1988-11-15 |
| 4283090 | Conveyor mounted excavator | — | 1981-08-11 |
| 4238038 | Log yarding skyline carriage | James A. Fikse | 1980-12-09 |
| 4190294 | Excavator for use in a tunneling shield | — | 1980-02-26 |