Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327999 | Disperse dye stable to dyeing, and its use for dyeing synthetic and semi-synthetic fibre materials | Stefan Koller, Peter Eugster | 1982-05-04 |
| 4309316 | Process for the production of washing powders of stabilized or enhanced appearance which contain fluorescent whitening agents | Burkhart Lange, Werner Fringeli, Franz Gunter | 1982-01-05 |