Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7696304 | Thermally stable water-soluble polymer which is crosslinkable at high temperatures | Christoph Kayser, Karl Heinz Heier, Aranka Tardi, Matthias Krull, Michael Schaefer | 2010-04-13 |
| 7053146 | Compositions containing copolymers based on acryloyldimethyl aminoethylsulfonic acid and synergistic additives | Roman Morschhäuser, Christoph Kayser, Matthias Loffler, Karl Heinz Heier, Aranka Tardi +1 more | 2006-05-30 |
| 6380137 | Copolymers and their use as drilling aids | Karl Heinz Heier, Roman Morschhäuser, Aranka Tardi, Susanne Weber | 2002-04-30 |