Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693191 | Method for the production of a particle-containing preparation of tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thione | Heinz Isak, Franz Schutz, Jörg Therre, Michael Drogemuller, Dirk Franke +3 more | 2004-02-17 |
| 6410042 | Plant protection products in the form of a granulate with controlled release of the active agent | Manfred Schroeder, Reiner Kober, Reinhold Stadler, Jorn Tidow, Erich Probeck | 2002-06-25 |
| 5624748 | Packaging materials having barrier properties against oxygen | Erich Penzel, Hermann Seyffer, Eberhard Beckmann | 1997-04-29 |
| 5554261 | Dyeing of paper | Claudia Nilz, Walter Breitschaft, Manfred Zillig, Primoz Lorencak | 1996-09-10 |
| 5554718 | Catonic urea/formaldehyde resins, their preparation and their use in the paper industry | Klaus Flory, Andreas Stange, Michael Kroener | 1996-09-10 |
| 5478656 | Cationic urea/formaldehyde resins, their preparation and their use in the paper industry | Klaus Flory, Andreas Stange, Michael Kroener | 1995-12-26 |
| 5290880 | Preparation of finely divided, water-soluble polymers containing vinylamine units | Dietmar Moench, Michael Kroener, Enrique Freudenberg, Heinrich Hartmann | 1994-03-01 |
| 5145559 | Production of paper, board and cardboard | Werner Auhorn, Friedrich Linhart, Primoz Lorencak, Michael Kroener, Walter Denzinger +1 more | 1992-09-08 |
| 5126395 | Preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides | Lutz End, Walter Denzinger, Michael Kroener, Enrique Freudenberg, Friedrich Linhart +2 more | 1992-06-30 |
| 5098521 | Production of paper, board and cardboard from paper stocks containing foreign materials | Enrique Freudenberg, Friedrich Linhart, Rainer Tresch, Heinrich Hartmann, Walter Denzinger +1 more | 1992-03-24 |
| 5008321 | Preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides and their use | Heinrich Hartmann, Walter Denzinger, Michael Kroener, Enrique Freudenberg | 1991-04-16 |