Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6576687 | Wet-strength agent with low DCP content | Karl-Rudolf Gassen, Karlheinrich Meisel, Fritz Puchner, Jurgen Reiners, Horst Zwick | 2003-06-10 |
| 6426381 | Fine-particle polymer dispersions for paper sizing | Eckhard Wenz, Gunter Sackmann, Thomas Roick, Bernd Thiele, Gabriele Kinkel +2 more | 2002-07-30 |
| 6387296 | Optically brightened plastics for optically brightening paper-coating compounds and paper-coating compounds optically brightened in this manner | Udo Eckstein, Fritz Puchner, Ulrich Feldhues, Matthias Kocher, Uwe Vogt +1 more | 2002-05-14 |
| 6310132 | Sizing agents for paper | Gunter Sackmann, Eckhard Wenz, Bernhard Jansen, Thomas Roick, Bernd Thiele +1 more | 2001-10-30 |
| 6143132 | Process for imparting wet strength to paper | Harro Traubel, Hans-Josef Laas, Helmut Reiff, Jurgen Reiners, Harald Faika | 2000-11-07 |
| 6090871 | Paper finishing aid | Jurgen Reiners, Jurgen Kopp, Harro Traubel, Eckhard Wenderoth, Bernhard Jansen +1 more | 2000-07-18 |
| 6080831 | Water-dispersible polyisocyanates | Bernhard Jansen, Bernd Thiele, Jurgen Reiners, Rolf-Volker Meyer | 2000-06-27 |
| 6022449 | Paper finishing process using polyisocyanates with anionic groups and cationic compounds | Bernhard Jansen, Peter Nowak | 2000-02-08 |
| 6008289 | Coating slips with polyisocyanates | Eckhard Wenderoth, Jurgen Kopp, Gottfried Wallpott | 1999-12-28 |
| 5739249 | Chlorine-free multifunctional resins for paper finishing | Jurgen Reiners, Hans-Josef Laas, Helmut Reiff, Joachim Probst, Bruno Bomer +3 more | 1998-04-14 |
| 5718804 | Process for the production of cellulose-containing sheet-like structures which have been given a dry strength and/or wet strength treatment | Bernhard Jansen, Peter Nowak, Jurgen Reiners | 1998-02-17 |
| 5688371 | Process for fixing disruptive substances in papermaking | Jurgen Kopp, Udo-Winfried Hendricks, Jurgen Reiners, Peter Nowak | 1997-11-18 |
| 5685034 | Hospital bed with integrated toilet facility | Johannes-Konrad Kleer, Michael Hehl, Peter Geiss | 1997-11-11 |
| 5503714 | Chlorine-free multifunctional resins for paper finishing | Jurgen Reiners, Hans-Josef Laas, Helmut Reiff, Joachim Probst, Bruno Bomer +3 more | 1996-04-02 |
| 5314721 | Process for sizing paper | Michael Muller, Joachim Probst, Heinrich Alberts, Heinz Baumgen, Fritz Puchner | 1994-05-24 |
| 5288787 | Emulsion polymers | Gunter Sackmann, Wolfgang Henning, Joachim Probst, Heinz Baumgen | 1994-02-22 |
| 5258466 | Paper size | Gunter Sackmann, Fritz Puchner, Heinz Baumgen | 1993-11-02 |
| 5013794 | Polymers of diisobutylene-sulfonate alkane maleic acid derivatives | Gunter Sackmann, Heinz Baumgen | 1991-05-07 |
| 4931510 | Polymers from ethylenic monomers | Gunter Sackmann, Heinz Baumgen | 1990-06-05 |
| 4904727 | Emulsion polymers | Joachim Probst, Wolfgang Henning, Heinz Baumgen | 1990-02-27 |
| 4888128 | Paper-coating slips containing fluorescent brighteners | Jochen Koll, Friedhelm Muller, Werner Bieber, Udo Eckstein, Hans Theidel | 1989-12-19 |
| 4806591 | Cationic sizing agents for paper | Joachim Probst, Heinz Baumgen, Bruno Bomer, Renke Mottweiler | 1989-02-21 |
| 4771097 | Tub sizes for paper | Gunter Sackmann, Ulrich Beck, Heinz Baumgen, Klaus Albrecht | 1988-09-13 |
| 4726302 | Method of reducing the nitrogen oxide content of a flue gas produced by a fossil-fuel power plant | Klaus Hein | 1988-02-23 |
| 4670100 | Aqueous solutions or dispersions of polyisocyanate addition products, a process for their preparation, and their use as coating compounds or as sizing agents for paper | Wolfgang Henning, Walter Meckel, Ulrich Beck, Heinz Baumgen | 1987-06-02 |