Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7004683 | Helice pierhead mounting plate and bolt assembly | — | 2006-02-28 |
| 6615554 | Helice pier coupling system used for soil stabilization | — | 2003-09-09 |
| 6503024 | Concrete foundation pierhead and method of lifting a foundation using a jack assembly | — | 2003-01-07 |
| 5934836 | Ground anchor device | Michael Ludwig | 1999-08-10 |
| 5919005 | Ground anchor device for penetrating an underground rock formation | — | 1999-07-06 |
| 5904447 | Drive device used for soil stabilization | Julie K. Sutton, Michael Ludwig | 1999-05-18 |