Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7195480 | Shaft preheater | Norbert Patzelt, Thomas Schmits, Heinz Tölke, Joachim Kudras, Wolfgang Schwab | 2007-03-27 |
| 6918760 | Shaft pre-heater | Norbert Patzelt, Thomas R. Schmitz, Wolfgang Schwab, Joachim Kudras, Tölke Heinz | 2005-07-19 |