Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324772 | Aqueous polymer dispersion | Juergen Schmidt-Thuemmes | 1994-06-28 |
| 5221284 | Method of coating leather using aqueous synthetic resin dispersions | Martin Meister, Juergen Schmidt-Thuemmes, Albrecht Zosel | 1993-06-22 |
| 5135963 | Aqueous dispersions of polyurethanes which are crosslinkable by the action of high energy radiation | Karl Haeberle, Peter Weyland, Hans Renz | 1992-08-04 |
| 4931062 | Hydrophobization of leather, pelts and leather substitute materials with carboxyl-containing polysiloxanes | Herbert Bay, Wolfram Bergold | 1990-06-05 |
| 4908239 | Finishing of leather | Dietrich Lach, Werner Maltry, Karl Fischer | 1990-03-13 |
| 4701269 | Waterproofing leather and skins | Herbert Bay, Rudi Widder | 1987-10-20 |
| 4612392 | N-substituted acrylamide and methacrylamide derivatives and their preparation | Kaspar Bott, Erich Penzel | 1986-09-16 |
| 4551359 | Production of magnetic recording media | August Lehner, Joachim Hack, Karl Krucker, Werner Balz, Karl H. Roemer +2 more | 1985-11-05 |
| 4424298 | Preparation of concentrated polyacrylate dispersions | Erich Penzel, Lothar Heider, Lothar Wuertele, Werner Schackert | 1984-01-03 |
| 4374872 | Casein coatings for leather insolubilized with alkoxy alkyl ureas | Lothar Wuertele, Harro Petersen, Ulrich Goeckel, Kurt F. Fischer | 1983-02-22 |