Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237289 | Ground Anchor | John Yapundich | 2001-05-29 |
| 5749180 | Ground anchor | Thomas B. Bird | 1998-05-12 |
| 5649788 | Bi-directional anchor drive system and method of using same | — | 1997-07-22 |
| 5031370 | Coupled drive rods for installing ground anchors | — | 1991-07-16 |
| 5029427 | Ground rod driver | — | 1991-07-09 |
| 5010710 | Ground rod driver | Daniel Gray | 1991-04-30 |