Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8444910 | Method for operating a shaft furnace, and shaft furnace operable by that method | Wolfram König, Hans-Heinrich Heldt, Dieter Senk, Heinrich-Wilhelm Gudenau, Alexander Babich | 2013-05-21 |
| 8309016 | Shaft furnace and method for operating a furnace | Wolfram König, Alexander Babich, Dieter Senk, Heinrich-Wilhelm Gudenau, Hans-Heinrich Heldt | 2012-11-13 |
| 8173064 | Method for operating a shaft furnace, and shaft furnance operable by that method | Wolfram König, Hans-Heinrich Heldt, Dieter Senk, Heinrich-Wilhelm Gudenau, Alexander Babich | 2012-05-08 |
| 6365611 | Pentaerythrite derivatives, the production and use thereof and intermediate products for the synthesis of the same | Ulrich Hess, Anne-Katrin Windeck, Holger Brosig | 2002-04-02 |
| 4693726 | Process for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkali | Fritz Meininger, Peter Mischke, Hartmut Springer | 1987-09-15 |
| 4659856 | 4,4'-bis-(.beta.-hydroxyethylsulfonyl)-biphenyl and its esters | Hartmut Springer | 1987-04-21 |
| 4257542 | Slide gate for containers holding liquid metal melt | Walther Aller, Eckehard Eisermann, Dieter Vahlhaus | 1981-03-24 |