Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759801 | Pigment preparations | Jurgen Goldmann | 1988-07-26 |
| 4734515 | 1:2 metal complexes of 2-nitroso-acetoacetic acid and benzoylacetic acid arylamides | Peter Bitterli, Jurgen Goldmann | 1988-03-29 |
| 4623397 | Surface coatings pigmented with a 1-(dichloro-4'-sulfamoyl or substituted sulfamoyl-phenylazo-2-hydroxy-3-phenylcarbamoyl or substituted phenylcarbamoyl-naphthalene | — | 1986-11-18 |
| 4544736 | "1,4-Di-[2'-(2"",4""-dichlorophenylazo)-3'-oxobutyramido]-2-methoxybenzene" | — | 1985-10-01 |
| 4540775 | "1,4-Di-[2'-(2"",4""-dichlorophenylazo)acetoacetamido]-2,5-dimethylbenzene" | — | 1985-09-10 |
| 4494955 | Mass dyeing of polyester with pyrrocoline dye of his thermal stability | Peter Bitterli | 1985-01-22 |
| 4455424 | Triazinyl compounds as intermediates for producing naphthoquinone derivatives | — | 1984-06-19 |