Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7153984 | Manufacture of α-tocopherol | Werner Bonrath, Alois Haas, Simone Hoppmann, Thomas Netscher | 2006-12-26 |
| 6482961 | Method of making (all-rac)-&agr;-tocopherol | Werner Bonrath, Alois Haas, Eike Hoppmann | 2002-11-19 |
| 6369242 | Tocopherol manufacture by tris(perfluorohydrocarbylsulphonyl) methane or metal methides thereof | Werner Bonrath, Alois Haas, Eike Hoppmann, Thomas Netscher | 2002-04-09 |
| 5910594 | Process for the manufacture of 5-cyano-4-lower alkyl-oxazoles | Klaus Behringer, Werner Bonrath | 1999-06-08 |
| 5908939 | Method of making D,L-A-tocopherol | Marcel Baak, Werner Bonrath | 1999-06-01 |
| 5817827 | Method for the dehydration of amides to nitriles | Werner Bonrath | 1998-10-06 |
| 5502212 | Process for the manufacture of 5-cyano-4-lower alkyl-oxazoles | Werner Bonrath, Reinhard Karge | 1996-03-26 |
| 5336683 | Antioxidants | Christof Wehrli | 1994-08-09 |
| 5210220 | Method for preparing derivatives of ascorbic acid | Christof Wehrli | 1993-05-11 |
| 4997958 | Process for producing ascorbic acid 6-esters | Christof Wehrli | 1991-03-05 |
| 4881993 | Explosive and propellant composition and method of preparation | Claude Furbringer | 1989-11-21 |
| 4841070 | Sulfinyl-ascorbic acid useful as an anti-oxidant | Christof Wehrli | 1989-06-20 |
| 4833259 | Light screening agents | Gustav Erlemann, Christian Fizet | 1989-05-23 |
| 4687859 | Monoesters of imidazolidinone dicarboxylic acids | Christof Wehrli | 1987-08-18 |
| 4636566 | Process for preparing D-(+)-biotin and intermediates therefor | Wolfgang Holick | 1987-01-13 |
| 4602036 | Panthenol derivatives | Alfred Hanck | 1986-07-22 |
| 4514338 | Panthenol derivatives | Alfred Hanck | 1985-04-30 |
| 4463180 | Process and intermediates for the manufacture of (3aS, 6aR)-1,3-dibenzyldihydro-1H-furo[3,4-d] imidazole-2,4(3H,3aH)-dione | Christof Wehrli, Jean-Jacques Vorsanger | 1984-07-31 |
| 4434178 | Antiperspirants | Hans-Ulrich Hostettler | 1984-02-28 |
| 4421749 | Aluminum pyridinethiols as antimicrobials | — | 1983-12-20 |
| 4296801 | Reusable heat devices containing xylitol as the heat-storage material | Woldemar Guex, Heinrich Klaeui, Felix Voirol | 1981-10-27 |
| 4295517 | Reusable heat devices containing xylitol as the heat-storage material | Woldemar Guex, Heinrich Klaeui, Felix Voirol | 1981-10-20 |
| 4255595 | Optically active cyclooctenyl ethyl alcohol | Gunther Wilke, Borislav Bogdanovic | 1981-03-10 |