Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9249060 | Flexible watertight roof coatings | Hardy Herold, Gary P. Fischer, Kenneth Kempinski | 2016-02-02 |
| 9005361 | Defoamer compositions for building-product mixtures | Frauke Henning, Ralph Scheuermann, George-Hans Bayne, Kerstin Klein, Markus Roos | 2015-04-14 |
| 8314170 | Dispersing agents | Ulf Dietrich | 2012-11-20 |
| 6051634 | Water-dispersible or water-soluble polyurethanes as additives for building materials | Hans-Josef Laas, Jan Mazanek, Dietbert Knofel, Karl-Georg Bottger | 2000-04-18 |
| 6007619 | Use of nonionic, water-dispersible polyisocyanates as concrete additives | Hans-Josef Laas, Martin Brahm, Jan Mazanek, Hermann Kober, Manfred Schonfelder +2 more | 1999-12-28 |