| 5529872 |
Electrostatic toners containing a metal complex dye as charge stabilizer |
Karin H. Beck, Rainer Dyllick-Brenzinger |
1996-06-25 |
| 4979962 |
Dyeing of natural or synthetic polyamides |
Manfred Daubitz |
1990-12-25 |
| 4804386 |
Chromium complex dye for polyamides or leather |
— |
1989-02-14 |
| 4720568 |
Basic colorants |
Manfred Eisert |
1988-01-19 |
| 4663441 |
Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphthol |
— |
1987-05-05 |
| 4597912 |
Basic colorants |
Manfred Eisert |
1986-07-01 |
| 4560744 |
Azo dye 2:1-chromium complexes |
Hans-Peter Baumann |
1985-12-24 |
| 4537955 |
Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and contains no sulfonamido or amino groups |
Hans-Peter Baumann |
1985-08-27 |
| 4489002 |
Azo compound and an azomethine compound and having a tertiary N-dative bond |
Hans-Peter Baumann |
1984-12-18 |
| 4474695 |
Complex dye mixture containing at least two cobalt 1:2 complexes of azo dyes |
Dietrich Lach |
1984-10-02 |
| 4424153 |
1:2 Chromium complex dyes containing sulfonic acid groups |
Hans-Peter Baumann |
1984-01-03 |
| 4397651 |
Polymeric dyes derived from bis-reactive methylene compounds and aromatic di-aldehydes for paper |
Hans-Juergen Degen |
1983-08-09 |
| 4353833 |
Cationic dyes |
Horst Bruder, Hans-Juergen Degen, Franz Feichtmayr, Udo Mayer |
1982-10-12 |
| 4323362 |
Dyed paper |
Hans-Juergen Degen |
1982-04-06 |
| 4280964 |
Basic dyes |
— |
1981-07-28 |
| 4264494 |
Chromium complex dyestuffs for natural polyamides and synthetic nylons |
Hans-Peter Baumann |
1981-04-28 |
| 4256458 |
Methine dyes for paper and amonically-modified fibers |
Hans-Juergen Degen, Franz Feichtmayr |
1981-03-17 |
| 4223144 |
Triphenylmethane dyes |
Hellmut Kast, Franz Feichtmayr |
1980-09-16 |
| 4212644 |
Dyed paper |
Hans-Juergen Degen |
1980-07-15 |
