Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6305882 | Apparatus for placing auger type anchors | John B. Coast | 2001-10-23 |
| 6234260 | Mobile drilling apparatus | John B. Coast | 2001-05-22 |
| 5811741 | Apparatus for placing geophones beneath the surface of the earth | John B. Coast | 1998-09-22 |
| 5217726 | Segmented barrel extruder feeder device | — | 1993-06-08 |
| 5209937 | Insert for barrel extruders | — | 1993-05-11 |
| 5054932 | Segmented barrel extruder device | — | 1991-10-08 |