Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8088830 | Paper production with modified silica gels as microparticles | Karlheinrich Meisel, Bernd Thiele, Johan Kijlstra, Arno Nennemann, Thomas Hübbe +1 more | 2012-01-03 |
| 7708862 | Paper production with modified silica gels as microparticles | Karlheinrich Meisel, Bernd Thiele, Johan Kijlstra, Arno Nennemann, Thomas Hübbe +1 more | 2010-05-04 |
| 6989106 | Process for the preparation of polymeric condensates and their use | Karlheinrich Meisel, Lars Obendorf, Branislav Boehmer, Bernd Thiele, Armin Spaniol +2 more | 2006-01-24 |
| 6350294 | Powder-metallurgically produced composite material and method for its production | Udo Siefken | 2002-02-26 |
| 6312495 | Powder-metallurgically produced composite material and method for its production | Udo Siefken | 2001-11-06 |
| 6254644 | Biologically degradable leather | Harro Traubel, Hanns P. Muller, Helmut Reiff, Jurgen Reiners, Rainhard Koch +1 more | 2001-07-03 |
| 6056787 | Process for the pretreatment of fibers | Michael Pirkotsch, Klaus Walz, Torsten Groth, Winfried Joentgen | 2000-05-02 |
| 5840902 | Process for the preparation of beta-hydroxyalkypicolinium salts | Karlheinrich Meisel, Klaus Walz, Hans Schulze, Carsten Gerdes, Karl-Rudolf Gassen +2 more | 1998-11-24 |
| 5519121 | Triazinyl-amino bridge-containing disazo dyestuffs | Peter Wild, Karin Hassenruck | 1996-05-21 |
| 5173547 | Copolymers containing perfluoroalkyls | Jutta Rottger, Wilfried Kortmann, Karl-Erwin Piejko | 1992-12-22 |
| 5109079 | Monofuctional polyacrylates, their production and their use for the production of polycarbonates | Ralf Dujardin, Karl-Erwin Piejko, Bruno Boemer, Alfred K. Jung, Werner Nouvertne | 1992-04-28 |