Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4732687 | Chromatography column and process for packing same | Peter Muller, Werner Gunkel, Gunther Sattler | 1988-03-22 | $39,946,000 |
| 4727147 | Optically active 1-(4-methoxybenzyl)-1,2,3,4,5,6,7,8-octahydroisoquinolinium acetates | Fritz Reiff, Hans Muller, Josef Conti | 1988-02-23 | $22,134,000 |
| 4414401 | Process for separating and recovering metal catalysts | Rolf Wittmann, Jurgen Butzke | 1983-11-08 | $8,294,000 |
| 4387245 | Preparation of diacetoneketogulonic acid by oxidation of diacetonesorbose | Rolf Wittmann, Jurgen Butzke | 1983-06-07 | $10,589,000 |
| 4375393 | Preparation of diacetone-ketogulonic acid | Fritz Reiff, Rolf Wittmann, Jurgen Butzke, Peter Muller | 1983-03-01 | $5,990,000 |