Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4954275 | Use of phenol-mercaptocarboxylic acid esters as stabilizers for lubricants | Kurt Schwarzenbach | 1990-09-04 |
| 4855345 | Stabilizers for organic polymers | Hans-Rudolf Meier | 1989-08-08 |
| 4623745 | Process for producing phenolic thiocarboxylic esters | Werner Stegmann | 1986-11-18 |
| 4612131 | Stabilized rubber or lubricant compositions containing mercaptoalkyl esters of hindered phenols | — | 1986-09-16 |
| 4532059 | Benzylated phenols | — | 1985-07-30 |
| 4532286 | Stabilized rubber or lubricant compositions containing mercaptoalkyl esters of hindered phenols | — | 1985-07-30 |
| 4513109 | Phenols and use thereof as stabilizers | — | 1985-04-23 |
| 4507420 | Phenols and use thereof as stabilizers | — | 1985-03-26 |
| 4439615 | Mercaptophenol stabilizers | Samuel Evans, Bernard Gilg | 1984-03-27 |
| 4417071 | Phenols useful as stabilizers | — | 1983-11-22 |
| 4390735 | Process for the preparation of p-allylphenols | — | 1983-06-28 |
| 4349445 | Dithiophosphates as lubricant antioxidents and anti-corrosion agents | — | 1982-09-14 |
| 4322303 | Dithiophosphate stabilizers | — | 1982-03-30 |
| 4297492 | Phenolic-1,3,5-triazines | Michael Rasberger, Samuel Evans | 1981-10-27 |
| 4246198 | Hindered phenolic amides | Andreas Schmidt | 1981-01-20 |
| 4225450 | Lubricant compositions containing dithiocarbamyl antioxidants | — | 1980-09-30 |
| 4220571 | Thermoplastic polyolefin composition and process for stabilizing polyolefins | — | 1980-09-02 |
| 4197236 | Piperidine stabilizers | Samuel Evans | 1980-04-08 |