Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6492440 | Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials | James P. Galbo, Nicola Lelli, Valerio Borzatta, Jean-Pierre Wolf, Michael Ackerman +1 more | 2002-12-10 |
| 6403680 | Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materials | James P. Galbo, Nicola Lelli, Valerio Borzatta, Jean-Pierre Wolf, Michael Ackerman +1 more | 2002-06-11 |
| 5726310 | Process for the preparation of 2-(2,4-dihydroxylphenyl)-4,6-bis(2,4-dimehylphenyl)-s-triazine | Martin Holer, Andre Kaufmann | 1998-03-10 |
| 5688969 | Process for the preparation of thiophene-2-5-dicarboxylic acid and the dichloride thereof | — | 1997-11-18 |
| 5616787 | Process for the preparation of alkylated aromatic carboxylic acids and acyl halides | Rinaldo Husler, Martin Holer | 1997-04-01 |
| 5436322 | Azo coupling of 2-nitroanilines with 2,4,-disbustituted phenols | Martin Holer | 1995-07-25 |
| 5130429 | Process for the methylation of triazine compounds containing 2,2,6,6-tetramethylpiperidine groups | Piero Piccinelli, Martin Holer, Valerio Borzatta | 1992-07-14 |
| 4716244 | Process for the preparation of sterically hindered hydroxyphenylcarboxylic acid esters | — | 1987-12-29 |
| 4699939 | Ortho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidants | Hans-Rudolf Meier, Paul Dubs, Samuel Evans, Peter Hofmann | 1987-10-13 |
| 4683326 | Solvent-free crystallization of pentaerythritol tetrakis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and the novel alpha-crystalline form thereof | Werner Fussenegger | 1987-07-28 |
| 4594444 | Process for the preparation of sterically hindered hydroxyphenylcarboxylic acid esters | — | 1986-06-10 |
| 4536593 | Process for the preparation of sterically hindered hydroxphenylcarboxylic acid esters | Eduard Troxler | 1985-08-20 |
| 4507463 | Process for producing polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyldiols | — | 1985-03-26 |
| 4492791 | Process for the preparation of polyaminotriazines | Eduard Troxler | 1985-01-08 |
| 4275211 | Process for preparing 2,2,6,6-tetraalkyl-4-oxopiperidines | Eduard Troxler | 1981-06-23 |