Stefan Hari — 17 Patents at Ciba-Geigy

Stefan Hari has been granted 17 US patents while listed as an inventor at Ciba-Geigy. The first was granted in 1980 and the most recent in October 1996. Stefan Hari ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Stefan Hari in Allschwil, CH.

Patents per Year

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Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date
RE35359	Amine salts of azo pigments based on pyrazolone derivatives	Georg Cseh	1996-10-22
5395926	Bisazo, bisazomethine and azo-azomethine compounds derived from 1,4-phenylenediamine sulfonic acid salts	Olof Wallquist	1995-03-07
5380870	Mixed crystals of sulfonated diketopyrrolopyrroles	Olof Wallquist, Fritz Herren, Thomas Eichenberger	1995-01-10
5298609	Disazo compounds containing cycloalkyl ester or cycloalkylamide groups	—	1994-03-29
5280121	Perylenetetracarboxylic acid diimides containing long-chain alkanoylamino radicals	—	1994-01-18
5151505	Amine salts of azo pigments based on pyrazolone derivatives	Georg Cseh	1992-09-29
5071967	Disazo compounds containing long-chain alkyl ester radicals or alkylamide radicals	Jost von der Crone	1991-12-10
4997920	Monoazo compounds containing long-chain alkyl radicals	Olof Wallquist, Jost von der Crone	1991-03-05
4992495	Process for coloring high-molecular weight organic material using amine salts of azo pigments based on pyrazolone derivatives	Georg Cseh	1991-02-12
4980458	Mixed sodium, ammonium and/or calcium salt crystals of laked monoazo disulfonated pyrazolone pigments	Arnold Grubenmann, Andreas Burkhard	1990-12-25
4946948	Mono and disazo compounds based on b-hydroxy-naphthoic acid derivatives or acetoacetarylide derivatives containing long-chain alkyl ester or alkylamide radicals	Fridolin Babler	1990-08-07
4737581	Phenyl-azo-hydroxynaphthoic acid amide pigments containing at least one carbonamide group	—	1988-04-12
4602961	Process for pigmenting high molecular weight organic material	—	1986-07-29
4473500	Monoazo pigments derived from aminophthalimides and substituted acetoacetarylides or 2-hydroxy-3-naphthoylarylides	Georg Cseh	1984-09-25
4400319	Monoazo pigments containing heterocycles, and high-molecular organic materials dyed therewith	Arnold Wick	1983-08-23
4263205	Monoazo pigments derived from substituted aminothiophenes	—	1981-04-21
4220586	Hetero-aryl azo acylamino substituted aceto-acetarylide pigments	Georg Cseh, Armand Roueche	1980-09-02