Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683553 | Preparation of 3-chlorophthalic anhydride | Karl Baur, Eckhardt Brandt | 1997-11-04 |
| 5419507 | Reel for strip-like recording substrates, in particular for photographic films | Josef Barth | 1995-05-30 |
| 5362399 | Removal of water from a phosgene recycle stream | Hans Volkmar Schwarz | 1994-11-08 |
| 5360905 | Recovery of caprolactam from oligomers and/or polymers of caprolactam | Hugo Fuchs, Claus-Ulrich Priester, Gerald Neubauer, Josef Ritz, Michael Kopietz | 1994-11-01 |
| 5149861 | Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes | Franz Merger, Peter Hettinger, Leopold Hupfer, Juergen Paetsch, Heribert Deck +1 more | 1992-09-22 |
| 5030328 | Method of separating .gamma.-butyrolactone from mixtures containing diethyl succinate | Rolf Fischer, Peter Stops, Rudolf Weigand | 1991-07-09 |
| 4681946 | Preparation of nicotinamide | Karl Baur, Volker Diehl, Peter Stops, Hans Hellbach | 1987-07-21 |
| 4320232 | Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene | Klaus Volkamer, Alfred Lindner, Franz Merger, Ulrich Wagner, Gerhard Sandrock +1 more | 1982-03-16 |
| 4287379 | Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene | Eckart Schubert, Alfred Lindner, Franz Merger, Klaus Volkamer, Max Strohmeyer +1 more | 1981-09-01 |