TS

Theodor Siegfried

Hoffmann-La Roche: 3 patents #991 of 3,238Top 35%
RV Roche Vitamins: 3 patents #39 of 198Top 20%
Overall (All Time): #887,786 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5777149 Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts Bruno Burdet, August Ruttimann, Jean-Marie Santer 1998-07-07
5681977 Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts Bruno Burdet, August Ruttimann, Jean-Marie Santer 1997-10-28
5631398 Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts Bruno Burdet, August R uttimann, Jean-Marie Santer 1997-05-20
5543559 Process for the enantioselective hydrogenation of ketosiophorone derivatives Emil A. Broger, Yvo Crameri, Rudolf Schmid 1996-08-06
5502236 Method for the production of (3-alkoxycarbonyl-2-butenyl)triphenylphosphonium salts Bruno Burdet, August Ru/ ttimann, Jean-Marie Santer 1996-03-26
5041563 Rearrangement process Peter Fahrni 1991-08-20