Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219678 | Process for preparing pure methyl tert.-butyl ether | Fritz Obenaus, Wilhelm Droste, Michael Zolffel, Wolfgang Muller | 1980-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219678 | Process for preparing pure methyl tert.-butyl ether | Fritz Obenaus, Wilhelm Droste, Michael Zolffel, Wolfgang Muller | 1980-08-26 |