Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401845 | Asymmetric aryl phosphites | Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Horst Zinke | 1995-03-28 |
| 5322871 | Asymmetric aryl phosphites | Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Horst Zinke | 1994-06-21 |
| 4863982 | Isocyanuric acid derivatives | Werner Stegmann, Peter Hofmann, Hans-Rudolf Meier, Paul Dubs | 1989-09-05 |
| 4536593 | Process for the preparation of sterically hindered hydroxphenylcarboxylic acid esters | Ivan Orban | 1985-08-20 |
| 4535145 | Process for the preparation of polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyl diols | Thomas Kainmuller, Rudolf Maul | 1985-08-13 |
| 4492791 | Process for the preparation of polyaminotriazines | Ivan Orban | 1985-01-08 |
| 4461898 | Process for the preparation of novel light stabilizers | Anton Meier | 1984-07-24 |
| 4310483 | Thermal tumbling granulation | Werner H. Dorfel, Bernhard Medinger | 1982-01-12 |
| 4275211 | Process for preparing 2,2,6,6-tetraalkyl-4-oxopiperidines | Ivan Orban | 1981-06-23 |