Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990210 | Apparatus for introducing and joining diaphragms in slotted walls | Eberhard Glaser, Manfred Nussbaumer | 1991-02-05 |
| 4838980 | Method and apparatus for introducing and joining diaphragms in slotted walls | Eberhard Glaser, Manfred Nussbaumer | 1989-06-13 |
| 4768897 | Covering for waste depositories | Manfred Nussbaumer, Eberhard Glaser | 1988-09-06 |
| 4697953 | Method and apparatus for subsequent underground sealing | Manfred Nussbaumer, Eberhard Glaser, Hartmann Eckardt | 1987-10-06 |
| 4690590 | Method and apparatus for positioning diaphragms in vertical slotted walls which are supported by a suspension | Manfred Nussbaumer, Eberhard Glaser | 1987-09-01 |
| 4679965 | Method and apparatus for installing panels into recesses in the ground | Eberhard Glaser | 1987-07-14 |
| 4678771 | Adsorption layer | Eberhard Glaser | 1987-07-07 |
| 4673316 | Method for fabricating slotted walls with built-in thin-walled sealing elements | Manfred Nussbaumer, Eberhard Glaser | 1987-06-16 |
| 4671705 | Plug connection for planar barrier webs | Manfred Nussbaumer, Eberhard Glaser | 1987-06-09 |
| 4647256 | Method and apparatus for producing underground pipes | Volker Hahn | 1987-03-03 |
| 4513504 | Method for determining the position of a pressed-ahead hollow-section line, and apparatus for implementing the method | Manfred Nussbaumer, Wolfgang Mohlenbrink | 1985-04-30 |
| 4501446 | Removal of fine-grained sediments from water bodies | Eberhard Glaser | 1985-02-26 |