Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5416227 | Dye salts of the anthraquinone dye series | Martin Tanner, Dieter Mausezahl, Robert von Arx | 1995-05-16 |
| 5066695 | High-molecular weight organic material containing a metal complex pigment basaed on hydrazone | Georg Cseh, Walter Wiedemann | 1991-11-19 |
| 4866112 | Thermoplastics containing a nickel complex pigment | Edward E. Jaffe | 1989-09-12 |
| 4847365 | Metal complexes of substituted 4-(2-carboxy-phenylazo-5-pyrazolones | — | 1989-07-11 |
| 4775747 | Copper or nickel complexes of ligands containing an azomethine, semicarbozone or hydrazone moiety | Georg Cseh | 1988-10-04 |
| 4670486 | Polymer composition pigmented with copper or nickel complexes of ligands containing a semicarbazone moiety | Georg Cseh | 1987-06-02 |
| 4639477 | Process for coloring high-molecular organic material, and novel metal complexes of oxime(s) of o-hydroxy benzaldehyde(s) and ketone(s) | Georg Cseh | 1987-01-27 |
| 4527994 | Process for mass-coloring nylon with 1:2 chromium complex azo dye | Werner Saar | 1985-07-09 |
| 4496727 | Process for the manufacture of metal complexes of isoindoline azines | Abul Iqbal | 1985-01-29 |
| 4460768 | Nickel complex pigments of azines | Abul Iqbal, Andre Pugin | 1984-07-17 |
| 4414395 | Process for the manufacture of hydrazono-isoindolines | Abul Iqbal | 1983-11-08 |
| 4385174 | Isoindoline compounds and the manufacture and use thereof | Abul Iqbal | 1983-05-24 |
| 4378970 | Red monoazo sulphonic acid dyestuffs for polyamide | Fabio Beffa | 1983-04-05 |
| 4370431 | Process for coloring fibre forming polyamides in the melt with azo pigments | Armand Roueche | 1983-01-25 |
| 4359418 | Amine salts of azo dyestuffs of the pyridone series | Gert Hegar | 1982-11-16 |
| 4355159 | Nickel complex pigments of azines | Abul Iqbal, Andre Pugin | 1982-10-19 |
| 4349671 | Process for the production of metal complexes of isoindoline azines | Abul Iqbal | 1982-09-14 |
| 4327212 | Isoindoline-azine nickel complex with piperazine | Francois L'Eplattenier | 1982-04-27 |
| 4312808 | Red monoazo dyestuffs | Fabio Beffa | 1982-01-26 |
| 4290964 | Undescanoic acids and esters thereof | Dieter Reinehr | 1981-09-22 |
| 4263197 | Process for dyeing linear polyamides in the melt | Abul Iqbal, Heinz Peter | 1981-04-21 |
| 4202814 | Process for the mass coloration of polyesters | Abul Iqbal | 1980-05-13 |