Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6676349 | Single-piece fixing element in the form of a screw or nail | — | 2004-01-13 |
| 4613344 | Method and apparatus for cleaning hot gases produced during a coal gasification process | Gunter Henrich, Harald Hoffmann, Heinz-Dieter Waldhecker | 1986-09-23 |