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, Hans Haverkamp, 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, Hans Haverkamp | 1998-12-01 |
| 5763712 | Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant | Peter Roth, Wolfgang Wendel | 1998-06-09 |