Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073295 | Encapsulated fluorescent whitening agent, photoativator or anti-microbial agent | Petr Kvita | 1991-12-17 |
| 4980459 | Process for the manufacture of formulations of water-insoluble azo dyes | Alberto Rabassa | 1990-12-25 |
| 4961755 | Coated active substances: dye coated with polyethylene oxide-propylene oxide or with ethoxylated stearyldi phenyloxyethyl diethylenetriamine | Petr Kvita | 1990-10-09 |
| 4944768 | Solid formulation of anionic wool dyes with anionic dispersant and amphoteric surfactant: glycine or betaine | Paolo Balliello, Otto Schilling | 1990-07-31 |
| 4762636 | Process for the preparation of granules containing an active substance and to the use thereof as speckles for treating substrates | Paolo Balliello, Hanspeter Will | 1988-08-09 |
| 4689048 | Process for the preparation of formulations of water-soluble organic dyes by two-stage membrane separation of crude dye suspension | Bruno Fortsch, Alberto Rabassa | 1987-08-25 |
| 4560747 | Process for producing granulates of water-soluble dyes by fluidized bed granulation | Hansjorg Schneider, Werner H. Dorfel | 1985-12-24 |
| 4559144 | Process for converting sparingly soluble inorganic salts of cationic dyes and brighteners into more soluble salts of organic acids | Heinz Pfenninger | 1985-12-17 |
| 4552562 | Process for preventing the gelation of concentrated aqueous photoactivator solutions | Werner Preiswerk | 1985-11-12 |
| 4548610 | Process for the preparation of solid photoactivator formulations: sulphonated zinc or aluminum phthalocyanine solutions | Werner Preiswerk | 1985-10-22 |
| 4500321 | Process for the preparation of concentrated fluid dye compositions | Paul Hugelshofer, Heinz Pfenninger, Roger Lacroix | 1985-02-19 |
| 4425134 | Process for producing agglomerates of water-soluble dyes | Hansjorg Schneider, Alain Millioud, Michael Rosch | 1984-01-10 |
| 4390342 | Process for the preparation of solid composition of water-soluble dyes | Heinz Pfenninger | 1983-06-28 |
| 4328220 | Non-dusty pulverulent and granulated organic dye preparations | Heinz Abel, Arthur Buhler | 1982-05-04 |