Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258540 | Cyclohexyl substituted hydroxybenyzlphosphonates | Paul Dubs, Reto Luisoli, Roger Martin | 1993-11-02 |
| 5240975 | Liquid substituted 2H-benzotriazole mixtures, stabilized compositions | Roland A. E. Winter, Robert Detlefsen, Reto Luisoli, David G. Leppard | 1993-08-31 |
| 5229521 | Process for the preparation of symmetrical 2,2-methylenebisbenzotriazolyl phenols | Reto Luisoli | 1993-07-20 |
| 5157141 | Process for the preparation of hydroxybenzylphosphonates | Paul Dubs, Reto Luisoli, Roger Martin | 1992-10-20 |
| 5110978 | Process for the preparation of phenolic thiocarboxylic acid esters | Reto Luisoli | 1992-05-05 |
| 5095062 | Stabilized compositions containing liquid substituted 2H-benzotriazole mixtures | Roland A. E. Winter, Robert E. Detiefsen, Reto Luisoli, David G. Leppard | 1992-03-10 |
| 5047591 | Single-stage process for producing bis-(amino-nitrophenyl)-methane | — | 1991-09-10 |
| 4973701 | Liquid substituted 2H-benzotriazole mixtures, stabilized compositions and processes for preparing the liquid mixtures | Reto Luisoli, David G. Leppard, Roland A. E. Winter, Robert Detlefsen | 1990-11-27 |
| 4921966 | Process for the preparation of liquid mixtures of alkylated 2-(2-hydroxyphenyl)benzotriazoles | Reto Luisoli | 1990-05-01 |
| 4874885 | Process for the preparation of mercaptomethylphenols | Hans-Rudolf Meier, Samuel Evans, Roger Martin, Reto Luisoli | 1989-10-17 |
| 4863982 | Isocyanuric acid derivatives | Eduard Troxler, Peter Hofmann, Hans-Rudolf Meier, Paul Dubs | 1989-09-05 |
| 4691058 | Process for producing 1-hydroxy ketones | — | 1987-09-01 |
| 4623745 | Process for producing phenolic thiocarboxylic esters | Siegfried Rosenberger | 1986-11-18 |