Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7767027 | Method and apparatus for removing combustion residues using different cleaning media | Achim Schiffer, Helmut Robiné, Stephan Schwenke, Helmut Dombrowski, Manfred Frach +1 more | 2010-08-03 |