Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791210 | Process for the production of 5-methyltetrazole | Johannes Schlupp, Josef Winterscheid, Klaus Thewalt | 1988-12-13 |
| 4754079 | Process for producing the sodium salt of 2-nitro-1,3-propanediol | Hans Leuck, Klaus Thewalt, Hans-Jorg Westerman | 1988-06-28 |
| 4652671 | Process for the preparation of dichloroisonitrilocarboxylic acid esters | Norbert Linkat, Klaus Thewalt | 1987-03-24 |
| 4448999 | Process for the preparation of 2-aminopropanediol-1,3(serinol) | Klaus Thewalt, Heinz Egger | 1984-05-15 |
| 4426531 | Process for the preparation of 1H-tetrazole-1 compounds using trimethylsilyl azide | Norbert Linkat, Wolfgang Wolfes | 1984-01-17 |
| 4252744 | Method of racemizing optically active 1-phenylethylamine | Kurt Breideneichen, Walter Heinzelmann, Wolfgang Wolfes | 1981-02-24 |
| 4190592 | Process for splitting the L-(-)-.alpha.-phenylethylamine salt of D-(-)-.alpha.-azidophenylacetic acid | Reiner Elfgen, Walter Heinzelmann, Josef Winterscheid, Wolfgang Wolfes | 1980-02-26 |