Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401845 | Asymmetric aryl phosphites | Rita Pitteloud, Peter Hofmann, Volker Schenk, Eduard Troxler, Horst Zinke | 1995-03-28 |
| 5322871 | Asymmetric aryl phosphites | Rita Pitteloud, Peter Hofmann, Volker Schenk, Eduard Troxler, Horst Zinke | 1994-06-21 |
| 5276161 | Process for the preparation of benzotriazoles | Helmut Prestel | 1994-01-04 |
| 5235086 | Process for the preparation of tris(2,4-ditert-butylphenyl)phosphite | Volker Schenk | 1993-08-10 |
| 5171873 | Process for the preparation of sterically hindered hydroxybenzylphosphonates | Thomas Kainmuller | 1992-12-15 |
| 5086173 | Process for the preparation of alkylhydroxyanilinothiotriazine derivatives | Wolfgang J. Tritschler, Heinz Steiner, Helmut Prestel | 1992-02-04 |
| 5068335 | Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpiperidine | Ulrich Kress, Siegfried Kintopf | 1991-11-26 |
| 4554368 | Continuous process for the preparation of alkyltin thiocarboxylic acid esters | Hans-Werner Stephan, Walter Wolf | 1985-11-19 |
| 4535145 | Process for the preparation of polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyl diols | Eduard Troxler, Thomas Kainmuller | 1985-08-13 |
| 4492661 | Process for producing triarylphosphites | Eberhard Otto, Horst Zinke | 1985-01-08 |
| 4479021 | Continuous process for producing 1,2-alkanediols | Heinz Issler | 1984-10-23 |
| 4440696 | Process for producing triarylphosphites | Eberhard Otto, Horst Zinke | 1984-04-03 |
| 4312818 | Process for producing triarylphosphites | Eberhard Otto, Horst Zinke | 1982-01-26 |
| 4297268 | 1,4-Dihydro-2,6 dimethylyridine-3,5-dicarboxylic acid ester compositions | Gerd Abeler | 1981-10-27 |
| 4214088 | 1,4-Dihydro-2,6-dimethylpyridene-3,5-dicarboxylic esters | Gerd Abeler | 1980-07-22 |
| 4189453 | Processes for the production of sulphur-containing esters of phosphoric acid and phosphorous acid | Horst Zinke, Joachim Lorenz, Eberhard Otto | 1980-02-19 |