Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978361 | Economy chrome tanning | Karlheinz Fuchs | 1990-12-18 |
| 4971835 | Processing for rendering leather hydrophobic and oleophobic by impregnation with fluoro chemicals | Lothar Schlosser, Gustav Hudec | 1990-11-20 |
| 4935031 | Process for short-term preservation of rawhides and skins | Karlheinz Fuchs | 1990-06-19 |
| 4877540 | Methylolated and optionally etherified urethanes containing fluoroalkyl ligands | Fritz Engelhardt, Karl Hintermeier, Manfred Muller, Hans Wagener | 1989-10-31 |