Werner Fringeli — 13 Patents at Ciba-Geigy

Werner Fringeli has been granted 13 US patents while listed as an inventor at Ciba-Geigy. The first was granted in 1980 and the most recent in May 1996. Werner Fringeli ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Werner Fringeli in Laufen, CH.

Patents per Year

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