Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482996 | Method for the production or preparation of 2,6-dichlorotoluol | Wolfram Eichinger, Andreas Schulze-Tilling | 2002-11-19 |
| 5436377 | Process for isolating M-dichlorobenzene from mixtures of dichlorobenzene isomers | Michael Pies, Helmut Lahr, Helmut Fiege | 1995-07-25 |
| 5386067 | Process for separating mixtures of m- and p-dichlorobenzene | Ursula Pentling, Hans-Josef Buysch, Lothar Puppe, Rolf Grosser, Hans-Ingolf Paul | 1995-01-31 |
| 5273627 | Process for stripping and distilling mixtures containing alkylaromatics chlorinated in the side chain | — | 1993-12-28 |
| 4851596 | Process for nucleus-chlorination of aromatic hydrocarbons | Franz-Josef Mais, Helmut Fiege, Karlfried Wedemeyer | 1989-07-25 |
| 4748287 | Process for the removal of m-dichlorobenzene from dichlorobenzene mixtures | Sigurd Hartung | 1988-05-31 |