Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7148379 | Preparation of 2-hydroxy-4-methylthiobutyric acid | Alexander Moller, Hans-Albrecht Hasseberg, Harald Heinzel | 2006-12-12 |
| 6566559 | Process for the production of isopropenyl methyl ether | Steffen Krill, Stephan Kretz, Georg Markowz | 2003-05-20 |
| 6316661 | Process for the production of 2,3,5-trimethylhydroquinone diesters | Steffen Krill, Horst Weigel, Klaus Huthmacher, Nongyuan Shi, Georg Markowz | 2001-11-13 |
| 6146612 | Method for recovering sulfuric acid from sulfate salts | Hans-Albrecht Hasseberg, Hans Joachim Hasselbach, Klaus Huthmacher, Harald Heinzel | 2000-11-14 |
| 6140536 | Process for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) | Hans-Albrecht Hasseberg, Hans Joachim Hasselbach, Klaus Huthmacher, Harald Heinzel, Barbara Jäger | 2000-10-31 |
| 6008409 | Method for obtaining 2-hydroxy-4-methylthiobutyric acid (MHA) which is stable in storage | Hans-Albrechl Hasseberg, Hans Joachim Hasselbach, Klaus Huthmacher, Harald Heinzel, Axel Ronneburg | 1999-12-28 |
| 5976609 | Process for recovering 2-hydroxy-4-methylthiobutyric acid (MHA), MHA and its use | Hans-Albrecht Hasseberg, Klaus Huthmacher, Herbert Tanner, Harald Heinzel | 1999-11-02 |
| 5847207 | Process for producing 2-hydroxy-4-methylthiobutyric acid (MHA) and its use as feed stuff supplement | Helmut Suchsland | 1998-12-08 |
| 4307037 | Process for the production of iminodiacetonitrile | Helmut Suchsland, Axel Kleemann | 1981-12-22 |