Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6132894 | 1:2 Iron azo-dyestuff complexes | Dominique Pflieger | 2000-10-17 |
| 6046335 | Heterocyclic compounds | Patrick Boeglin, Bruno Piastra | 2000-04-04 |
| 6024771 | Mixtures of 2:1 aluminium complexes | Dominique Pflieger | 2000-02-15 |
| 5965716 | Dyestuff salts containing a cationic group derived from a sterically hindered amine | Angelos-Elie Vougioukas | 1999-10-12 |
| 5932640 | Dyeability or mass coloration of synthetic polyamide | Angelos-Elie Vougioukas | 1999-08-03 |
| 5731422 | 2:1 Aluminum complexes of monoazo compounds | Dominique Pflieger | 1998-03-24 |
| 5698683 | Mixed aluminium-heavy metal dyestuff complexes and a process for their preparation | Dominique Pflieger | 1997-12-16 |
| 5650515 | Salts of metal-free anionic dyes having cations containing sterically hindered amine groups | Angelos-Elie Vougioukas | 1997-07-22 |
| 5626634 | Aqueous compositions of solvent-soluble dyestuffs | J urgen Goldmann | 1997-05-06 |
| 5616778 | "Modified form of bis-1,4-[2'-(2"",5""-dimethoxycarbonylphenylazo)-3'-oxobutyramido]benzene and process for its synthesis" | J urgen Goldmann | 1997-04-01 |
| 5571899 | Salts of metal-free anionic substituted-2-hydroxy-1-phenylazonaphthalene dyes having cations containing sterically hindered amine groups | Angelos-Elie Vougioukas | 1996-11-05 |
| 5565563 | Triphendioxazine compounds | Peter Kempter | 1996-10-15 |
| 5563260 | Phthalocyanine solvent dyes | Dominique Pflieger | 1996-10-08 |
| 5523387 | Mass dyeing of synthetic polymers with dyes in salt form | Jurgen Goldmann | 1996-06-04 |
| 5510403 | Process for mass pigmenting of synthetic polyamides | — | 1996-04-23 |
| 5510467 | Salts of metal-free anionic phenylazopyrazolone dyes having cations containing sterically hindered amine groups | Angelos-Elie Vougioukas | 1996-04-23 |
| 5493022 | Brightener and light stabilizer salts | Angelos-Elie Vougioukas | 1996-02-20 |
| 5476923 | Divalent cobalt and manganese salts of 3-carboxy-4-(dihalo-sulfophenylazo)-1-phenylpyrazol-5-ones | Jurgen Goldmann | 1995-12-19 |
| 5470921 | Synthetic polyamides and their salts | Angelos-Elie Vougioukas, Jurgen Goldmann | 1995-11-28 |
| 5316553 | Dyestuffs for the dyeing of synthetic polyamides | Angelos-Elie Vougioukas | 1994-05-31 |
| 5304244 | Zwitterionic pigments | Jurgen Goldmann | 1994-04-19 |
| 5037448 | Processes for the mass dyeing of synthetic polyamides | — | 1991-08-06 |
| 4879373 | 1-(dichloro-4'-sulfamoyl or substituted sulfamoyl-phenyazo)-2-hydroxy-3-phenylcarbamoyl or substituted phenylcarbamoyl-naphthalenes | — | 1989-11-07 |
| 4866113 | Compounds useful as pigments containing one or more 2,2,6,6-tetraalkylpiperidine groups | Peter Bitterli, Manfred Geisel, Jurgen Goldmann | 1989-09-12 |
| 4838943 | Compounds useful as pigments containing one or more 2,2,6,6-tetraalkylpiperidine groups | Peter Bitterli, Manfred Geisel, Jurgen Goldmann | 1989-06-13 |