Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10357725 | Method for producing moulded articles | Andreas Grundei, Oliver Tretzack | 2019-07-23 |
| 9555558 | Process for producing a product | Manuel Steiner, Oliver Tretzack, Wangqian Zhao | 2017-01-31 |
| 9222358 | Sealing arrangement for shaft and tunnel constructions | Heiko Hoeft, Holger Gutschmidt, Andreas Artus, Marc Fischer, Matthias Klug | 2015-12-29 |
| 9206528 | Method and device for the production of molded bodies | Oliver Tretzack, Helmut Schildknecht, Daniel Witte | 2015-12-08 |
| 8519093 | Process and a device for the continuous treatment of mixed substances | Pierre-Alain Fleury, Thomas Isenschmid, Alfred Kunz, Alain Schwick, Manuel Steiner +1 more | 2013-08-27 |
| 8299201 | Bismuth-catalyzed polyurethane composition | Urs Burckhardt | 2012-10-30 |
| 6875756 | Method and device for the continuous, single-step production of a homogeneous solution of cellulose in hydrous tertiary aminoxides | Christoph Michels | 2005-04-05 |