Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863982 | Isocyanuric acid derivatives | Werner Stegmann, Eduard Troxler, Hans-Rudolf Meier, Paul Dubs | 1989-09-05 |
| 4847368 | Method of manufacturing alkyloligoglycosides | Harald Lueders | 1989-07-11 |
| 4798822 | Selected 3,9-di(2,2,6,6-tetramethyl-4-piperidyl)-2,4,8,10-tetraoxa-3,9-diphosphas piro [5,5]undecanes | Michael Rasberger, Hans-Rudolf Meier, Paul Dubs | 1989-01-17 |