Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624192 | Process for production of diacetylrhein | Alfons Carcasona, Pentti Hêitala, Klaus Witthohn, Helga Zaeske | 2003-09-23 |
| 6596764 | Method of preparing diacetyl rhein | Alfons Carcasona, Pentti Hietala, Helga Zaeske, Klaus Witthohn | 2003-07-22 |
| 5710260 | Method of extracting sennosides A, B and A1 | Alfons Carcasona, Pentti Hietala, Helga Zaeske, Klaus Witthohn | 1998-01-20 |
| 5393898 | Method of preparing diacetyl rhein | Alfons Carcasona, Pentti Hietala, Helga Zaeske, Klaus Witthohn | 1995-02-28 |
| 5391775 | Process for production of diacetylrhein | Alfons Carcasona, Pentti Hêitala, Klaus Witthohn, Helga Zaeske | 1995-02-21 |
| 5159080 | Indole compounds, a process for their preparation, and pharmaceutical compositions containing them | Klaus Goler, Karl P. Odenthal, Pierre Potier | 1992-10-27 |
| 4855422 | Process for the preparation of azoniaspironortropanol esters | Klaus Gorler, Karl P. Odenthal | 1989-08-08 |
| 4780476 | Azoniaspironortropanol esters as asthma therapeutics and broncholytics | Karl P. Odenthal | 1988-10-25 |