Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5037511 | Process for the production of pure dimethylether | Hartmut Hammer, Ewald Meisenburg, Horst Schmid | 1991-08-06 |
| 4885405 | Process for the production of pure dimethylether and a catalyst used in the process | Hartmut Hammer, Bernd-Michael Haas, Ewald Meisenburg | 1989-12-05 |
| 4802956 | Process for the purification of dimethylether by distillation | Hartmut Hammer, Ewald Meisenburg | 1989-02-07 |