Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797436 | Oligomeric diazaoxaspirodecanes, preparation thereof and use thereof as light stabilizers for polymers | Josef Ertl | 1989-01-10 |
| 4405735 | Substituted diazaspirodecanes, their preparation and their use as stabilizers for organic polymers, and the polymers thus stabilized | Hartmut Wiezer, Gerhard Pfahler | 1983-09-20 |
| 4378998 | Process for the preparation of oxidation products of ethylene copolymers, and their use | Karl-Heinz Stetter, Gunther Illmann, Rolf Jacob, Otto Malitschek, Josef Strehle | 1983-04-05 |
| 4283545 | Process for the preparation of 1,2,4-triazole | Harald Knorr, Thomas Maier, Hilmar Mildenberger | 1981-08-11 |
| 4237043 | Organotin compounds, the preparation and use thereof | Franz Scheidl | 1980-12-02 |
| 4234471 | Novel polyalkyl-piperidine polymers, their preparation and use | Hartmut Wiezer, Gerhard Pfahler | 1980-11-18 |
| 4220773 | Process for the manufacture of aza-spirodecanes | Hartmut Wiezer, Norbert Mayer | 1980-09-02 |
| 4202830 | Organotin halides | Franz Scheidl | 1980-05-13 |