Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135986 | Stabilized styrene copolymers containing elastomer particles | Rolf Mulhaupt, Bernard Gilg, Gerhard Rytz | 1992-08-04 |
| 5059689 | Tetramethylpiperidino-s-triazines | Jean Rody, Gerhard Rytz | 1991-10-22 |
| 5051459 | N-Triazinyloxalamides | Jean-Luc Birbaum, Andreas Valet | 1991-09-24 |
| 5032498 | Compositions and photographic materials containing 2-(2-hydroxyphenyl)-benztriazoles, as UV-absorbers | Jean Rody | 1991-07-16 |
| 5030731 | Coating material stabilized against the action of light | Manfred Rembold | 1991-07-09 |
| 4996326 | Novel 2-(2-hydroxyphenyl)-benzotriazole derivatives, substituted by branched long chain alkyl groups containing ester moieties | David G. Leppard, Jean Rody | 1991-02-26 |
| RE33489 | Photolytically cleavable, N-acylated sterically hindered amines | Godwin Berner | 1990-12-11 |
| 4973702 | 2-(2-hydroxyphenyl)-benztriazoles | Jean Rody | 1990-11-27 |
| 4952620 | Photolytically cleavable N-acylated sterically hindered amines | Godwin Berner | 1990-08-28 |
| 4942238 | Unsaturated derivatives of 2,2,6,6-tetramethylpiperidine | Gerhard Rytz | 1990-07-17 |
| 4894399 | Light-stabilized polymer microparticles containing epoxy groups | Jean Rody, Franciszek Sitek, Andreas Valet | 1990-01-16 |
| 4892915 | Copolymers of 2-(2-hydroxy-5-acryloyloxyalkyl)phenyl-2H-benzotriazoles | Jean Rody | 1990-01-09 |
| 4880859 | Light-stabilized star polymer microparticles | Jean Rody, Franciszek Sitek, Andreas Valet | 1989-11-14 |
| 4853471 | 2-(2-Hydroxyphenyl)-benztriazoles, their use as UV-absorbers and their preparation | Jean Rody | 1989-08-01 |
| 4824612 | Process for oxidizing secondary aromatic alcohols | Werner Rutsch | 1989-04-25 |
| 4785063 | Copolymerizable 2-(2'-hydroxy-5'-acryloyloxyalkyl)-2H-benzotriazoles | Jean Rody | 1988-11-15 |
| 4785102 | Photolytically cleavable, N-acylated sterically hindered amines | Godwin Berner | 1988-11-15 |
| 4775707 | Coatings materials stabilized against the action of light | Manfred Rembold | 1988-10-04 |
| 4537923 | Polyalkylpiperidinesulfonic acid esters | Friedrich Karrer | 1985-08-27 |
| 4481315 | Polyalkylpiperidine light stabilizers | Jean Rody | 1984-11-06 |
| 4289686 | Tetra-alkyl piperidine derivatives as light stabilizers | Jean Rody | 1981-09-15 |
| 4263505 | Polyalkylpiperidine-spirooxazolones and their use as light stabilizers | Erwin Nikles | 1981-04-21 |