Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7429148 | Method for making a foundation pile | — | 2008-09-30 |
| 6375392 | Method for making a wall in the ground and drilling element used therewith | — | 2002-04-23 |
| 6082472 | Earth displacement drill | — | 2000-07-04 |
| 5697734 | Method for forming a foundation pile in the ground utilizing a prefabricated pile shaft | — | 1997-12-16 |
| 5505564 | Method for providing a sheet pile wall in the ground and a prefabricated wall element for carrying out such method | — | 1996-04-09 |
| 5423633 | Piling apparatus adapted to be provided in a tube | — | 1995-06-13 |
| 5325702 | Machine and method for determining the load capacity of foundation piles | — | 1994-07-05 |
| 5232308 | Emergency spill basin | — | 1993-08-03 |
| 4943189 | Method of contructing a vertical barrier wall in the ground, as well as apparatus for applying this method | — | 1990-07-24 |
| 4877357 | Method and apparatus for making a slurry trench or wall in the soil | — | 1989-10-31 |
| 4659257 | Method for making a hole in the ground, and hollow body open at the lower and upper sides and adapted for use in this method | — | 1987-04-21 |
| 4655301 | Expansible drive core | — | 1987-04-07 |
| 4623025 | Soil-displacement drill and method for manufacturing a pile | — | 1986-11-18 |