Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935947 | Imidobisphosphoric acids, and use thereof | Katsuhiro Yoshikawa, Kazuyuki Kitamura, Mizuho Inazu | 1999-08-10 |
| 5744643 | Process for preparing aromatic amines | Matthias Beller, Ahmed M. Tafesh, Christian Kohlpaintner | 1998-04-28 |
| 5741931 | Phosphepinium salts | Dieter Regnat | 1998-04-21 |
| 5733897 | Imidobisphosphoric acids, and use therefor | Katsuhiro Yoshikawa, Kazuyuki Kitamura, Mizuho Inazu | 1998-03-31 |
| 5728886 | Compounds of the phosphine group, their preparation and their use | Dieter Regnat | 1998-03-17 |
| 5696296 | Diphosphines and process for their preparation | Dieter Regnat | 1997-12-09 |
| 5684182 | Sulfonated diphosphines and a process for their preparation | Ahmed M. Tafesh, Dieter Regnat, Hans-Jerg Kleiner | 1997-11-04 |
| 5661174 | Guanidinealkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use | Hans-Jochen Lang, Jurgen K. Sandow, Anne-Marie Moura | 1997-08-26 |
| 5498617 | Guanidinealkyl-1,1-bisphosphonic acid derivatives process for their preparation and their use | Hans-Jochen Lang, Jurgen K. Sandow, Anne-Marie Moura | 1996-03-12 |
| 5395826 | Guanidinealkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use | Hans-Jochen Lang, Jurgen K. Sandow, Anne-Marie Moura | 1995-03-07 |
| 5364846 | N-cycloalkylaminoethane-1,1-bis (phosphonic acid) useful for the treatment of osteoporosis and degenerative joint disease | Hans-Jochen Lang, Ruth Raiss, Osamu Komiyama, Yoshiko Terui | 1994-11-15 |
| 5302677 | Alkenylaminoalkane-1,1-diphosphonic acid derivatives and copolymers thereof with unsaturated carboxylic acids | Matthias Krull, Herrmann Hoffmann | 1994-04-12 |
| 5294608 | Guanidinoalkyl-1,1-bisphosphonic acid derivatives, process for their preparation and their use | Hans-Jochen Lang, Denis Carniato, Anne-Marie Moura, Ryoichi Satoh, Masakazu Katoh | 1994-03-15 |
| 5266700 | Bipyridyls and their use as inks | Heinz Langhals | 1993-11-30 |