Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5518657 | Storage-stable formulation of fluorescent whitening mixtures | Josef Zelger | 1996-05-21 |
| 5423905 | Moth- and beetle-proofing formulation | — | 1995-06-13 |
| 5076968 | Aqueous storage-stable whitener formulation with an anionic polysaccharide stabilizer | Josef Zelger | 1991-12-31 |
| 5053055 | Whitener dispersion | Martin Jollenbeck | 1991-10-01 |
| 5051111 | Whitener dispersion | Italo Anceschi, Martin Jollenbeck, Georges Mahler, Willy Schurings | 1991-09-24 |
| 5009669 | Aqueous dispensions of 2-(2'-hydroxyphenyl)benzotriazoles | Martin Jollenbeck, Hans-Ulrich Berendt | 1991-04-23 |
| 4605511 | Stable stilbene fluorescent brightener solution | — | 1986-08-12 |
| 4386965 | Process for obtaining coating compositions of improved whiteness | Max Flubacher, Alain Lauton | 1983-06-07 |
| 4364845 | Concentrated aqueous solutions of sulfo group-containing fluorescent brighteners which are stable on storage | — | 1982-12-21 |
| 4339238 | Stable aqueous formulations of stilbene fluorescent whitening agents | Alain Lauton | 1982-07-13 |
| 4309316 | Process for the production of washing powders of stabilized or enhanced appearance which contain fluorescent whitening agents | Burkhart Lange, Suresh C. Agarwal, Franz Gunter | 1982-01-05 |
| 4298490 | Process for the production of washing powders of stabilized or enhanced appearance which contain fluorescent whitening agents | Burkhart Lange, Suresh C. Agarwal, Franz Gunter | 1981-11-03 |
| 4212763 | Bis-triazinylaminostilbene compounds and their use as fluorescent brightening agents | — | 1980-07-15 |