Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258281 | Breaking down aromatic compounds in industrial wastewaters | Edmund Niedbalski, Laurance R. Thurman, Irene Troetsch-Schaller, Ludwig Schuster, Peter Zehner +2 more | 2001-07-10 |
| 5288911 | Preparation of .alpha.,.omega.-aminoalcohols | Gerhard Koppenhoefer, Wolfgang Schroeder | 1994-02-22 |
| 5248496 | Method of obtaining ruthenium tetroxide by oxidation of an aqueous alkali metal ruthenate solution | Ludwig Schuster | 1993-09-28 |
| 4965362 | Joint preparation of 3-dialkylaminopropionitriles, bis-(2-cyanoethyl) ether and, if desired, ethylene-cyanohydrin | Franz Merger, Wolfgang Harder, Peter Hettinger, Claus-Ulrich Priester, Dieter Franz | 1990-10-23 |
| 4925940 | Preparation of cyclic N,N'-dimethylureas | Lothar Franz, Manfred Eggersdorfer | 1990-05-15 |
| 4910304 | Preparation of N-substituted cyclic amines | Roman Fischer, Herbert Mueller | 1990-03-20 |
| 4736030 | Preparation of 1-alkyl- or 1-cycloalkylpiperazines | Herbert Mueller, Wolfgang Lengsfeld | 1988-04-05 |
| 4709072 | Joint preparation of ethylene cyanohydrin and its ethers | Franz Merger, Hans-Martin Hutmacher, Peter Hettinger, Wolfgang Lengsfeld | 1987-11-24 |
| 4622428 | Preparation of 1,3-diamino-2,2-dialkylpropanes | Franz Merger, Siegfried Winderl | 1986-11-11 |
| 4539415 | Preparation of 3-hydroxytetrahydrofuran | Herbert Mueller | 1985-09-03 |
| 4386208 | Preparation of N-alkylpiperidines and N-alkylpyrrolidines | Walter Rebafka, Juergen Schossig, Wolfgang Reiss | 1983-05-31 |
| 4384147 | Preparation of catalysts and their use for the hydrogenation of acetylene-alcohols | Karl Baer, Wolfgang Reiss, Wolfgang Schroeder | 1983-05-17 |
| 4287099 | Preparation of catalysts for the hydrogenation of acetylene-alcohols | Karl Baer, Wolfgang Reiss, Wolfgang Schroeder | 1981-09-01 |