Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5882485 | Process for the separation of dimethyl ether and chloromethane in mixtures | Peter Roth, Erhard Leistner, Hans Haverkamp, Michael Kleiber | 1999-03-16 |
| 5763712 | Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant | Peter Roth, Erhard Leistner | 1998-06-09 |
| 4353717 | Process for absorbing ozone | Peter Herbrechtsmeier, Gunter Greiner, Wolfgang Grunbein, Norbert Nix, Hans-Ludwig Schafer | 1982-10-12 |