Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489513 | Process for the preparation of enantiomerically pure (5, 5′-dichloro-6,6′-dimethoxy-biphenyl-2,2′-diyl)- bis(diphenylphosphine oxides) | Torsten Pohl, Thomas Prinz, Wolfram Sirges | 2002-12-03 |
| 6462200 | Diphosphines | Birgit Driessen-Holscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Claus Dreisbach +2 more | 2002-10-08 |
| 6458954 | Process for preparing piperidines | Herbert Diehl, Georg Martin, Lutz Frohn, Erich Hammerschmidt | 2002-10-01 |