Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5882485 | Process for the separation of dimethyl ether and chloromethane in mixtures | Peter Roth, Erhard Leistner, Wolfgang Wendel, Michael Kleiber | 1999-03-16 |
| 5843286 | Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with water as extractant | Peter Roth, Erhard Leistner | 1998-12-01 |
| 4964783 | Device for emptying a liquid-collection tank in a water-conducting household appliance | — | 1990-10-23 |
| 4381048 | Electric motor with automatically acting brake | Walter Wistinghausen | 1983-04-26 |