Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890690 | Exhaust gas muffler for a two-stroke engine | Jurgen Grassmuck, Michael Wissmann, Albert Shane Dreher | 1990-01-02 |
| 4618669 | S-(carbamoyl-phenylselenyl) derivatives of glutathione and of aminomercaptocarboxylic acids | Norbert Dereu, Andre Welter, Albrecht Wendel, Sigurd Leyck, Michael Parnham +3 more | 1986-10-21 |
| 4413149 | Process for the catalytic hydrogenolysis of p-substituted benzaldehyde-dimethylacetals to produce the corresponding benzyl methyl ether derivatives | Detlef Skaletz | 1983-11-01 |