Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010061 | Lattice girder | — | 2015-04-21 |
| 8979434 | Tubbing lining having an integrated flexible element | — | 2015-03-17 |
| 6921232 | Mine roof-support truss | Lothar Domanski, Franz-Josef Wunderlich | 2005-07-26 |
| 6880308 | Lattice girder supporting frame having straight brace parts | Rudolf Seiz | 2005-04-19 |
| 5564867 | Resilienty compressible support column for use in a mine | Lothar Domanski | 1996-10-15 |
| 5484130 | Support column for use in a mine | Lothar Domanski | 1996-01-16 |
| 5314161 | Mine prop | Lothar Domanski | 1994-05-24 |
| 5149044 | Cap shoe | Werner Mennekes | 1992-09-22 |