Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931466 | Crystalline form and its preparation | Siegfried Kersten, Karl-Friedrich Jaeger, Karl-Heinz Koenig, Josef B. Pawliczek, Hans-Gert Recker +2 more | 1990-06-05 |
| 4868308 | Preparation of N-phenyl(pyridyl) sulfonyldiamides | Hans Rupert Merkle, Gerhard Hamprecht, Gernot Reissenweber | 1989-09-19 |
| 4451378 | Isolation of 3-isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide from waste water from its preparation | Hanspeter Hansen, Hans Rupert Merkle | 1984-05-29 |