Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5777149 | Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts | Bruno Burdet, August Ruttimann, Theodor Siegfried | 1998-07-07 |
| 5681977 | Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts | Bruno Burdet, August Ruttimann, Theodor Siegfried | 1997-10-28 |
| 5631398 | Method for the production of (3-alkoxycarbonyl-2-butenyl) triphenylphosphonium salts | Bruno Burdet, August R uttimann, Theodor Siegfried | 1997-05-20 |
| 5502236 | Method for the production of (3-alkoxycarbonyl-2-butenyl)triphenylphosphonium salts | Bruno Burdet, August Ru/ ttimann, Theodor Siegfried | 1996-03-26 |