Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8397833 | Construction apparatus with extendable mast and method for operating such a construction apparatus | Leonhard Weixler | 2013-03-19 |
| 8348555 | Formwork element for bounding a trench wall section, formwork part and method for producing a trench wall in the ground | Franz Werner Gerressen, Roland Wenger | 2013-01-08 |
| 8322458 | Drilling rig and drilling method | Werner Harthauser | 2012-12-04 |
| 8046959 | Construction apparatus with pivotable mast | Leonhard Weixler | 2011-11-01 |
| 7713002 | Drilling device and method for producing a drilling column in the soil | — | 2010-05-11 |
| 7707752 | Trench wall in the ground and method for the production thereof | — | 2010-05-04 |
| 7677839 | Drilling implement and method for installing a drilling pillar in the ground | — | 2010-03-16 |
| 7578080 | Cutting tooth for a ground working implement | Wilhelm Ruby | 2009-08-25 |
| 7571781 | Auger bit | — | 2009-08-11 |
| 7559377 | Construction apparatus | — | 2009-07-14 |
| 7559161 | Soil working method and apparatus | — | 2009-07-14 |
| 7559583 | Tube coupling for tube elements | — | 2009-07-14 |
| 7367143 | Cutter and method for working the soil | — | 2008-05-06 |
| 7363733 | Device and method for making a trench wall in the soil | — | 2008-04-29 |
| 7234538 | Method for sinking a borehole in the ground and wet boring tool | — | 2007-06-26 |
| 5924222 | Trench wall cutter | — | 1999-07-20 |