Inventor · disambiguated record
Klaus Leverenz
Also filed as: LEVERENZ KLAUS
18 granted patents·151 citations·filing 1973–1991
94Inventor score
Files withBAYER AG18
Top patents by PatentIndex Score
18 records- 0188US4105655APhenyl-azo-anilino dyestuffBAYER AG·Filed 1976·Granted Aug 8, 1978·17 cites·1 claims
- 0286US4083844APhenylazo orthocyano phenylazo or orthocyano phenylazo phenylazo containing dyestuffsBAYER AG·Filed 1974·Granted Apr 11, 1978·15 cites·5 claims
- 0386US3962209AProcess for preparing azo dyestuffs with ortho-azo cyano groups by cyano exchange of metal cyanides and halo dyestuffsBAYER AG·Filed 1973·Granted Jun 8, 1976·21 cites·9 claims
- 0478US3978040AProcess for the preparation of cyanoazo compounds by reacting halogenoazo compounds with CuCN in an aqueous media in the presence of a nitrogen baseBAYER AG·Filed 1974·Granted Aug 31, 1976·10 cites·12 claims
- 0576US5208325ACationic 1,3,4-thiadiazole dyestuffsBAYER AG·Filed 1991·Granted May 4, 1993·15 cites·5 claims
- 0676US4681932ABenzoisothiazole azo dyestuffsBAYER AG·Filed 1985·Granted Jul 21, 1987·10 cites·3 claims
- 0776US4237048AMonoazo dyestuff containing di-cyano substituents ortho to the azo groupBAYER AG·Filed 1976·Granted Dec 2, 1980·10 cites·5 claims
- 0871US4329283AHydroxypyridone azo dyestuffsBAYER AG·Filed 1979·Granted May 11, 1982·7 cites·4 claims
- 0969US4083846AProcess for the preparation of azo dyestuffsBAYER AG·Filed 1976·Granted Apr 11, 1978·7 cites·10 claims
- 1069US3968099AProcess for the preparation of azo dyestuffs containing cyano groupsBAYER AG·Filed 1975·Granted Jul 6, 1976·7 cites·3 claims
- 1167US4722737AStable gamma-modification of a benzisothiazole azo dyestuffBAYER AG·Filed 1987·Granted Feb 2, 1988·8 cites·2 claims
- 1255US4250089AProcess for diazotizing aromatic aminesBAYER AG·Filed 1976·Granted Feb 10, 1981·4 cites·5 claims
- 1346US3954395AMixtures of dyestuffsBAYER AG·Filed 1973·Granted May 4, 1976·8 cites·4 claims
- 1443US4810783AProcess for the preparation of azo dyestuffs having an aniline-type coupler by aminolysis of the appropriate ether group-containing compoundsBAYER AG·Filed 1987·Granted Mar 7, 1989·9 cites·6 claims
- 1535US4835261ANonionic azo compounds in which the coupling component is a 3,4-dialkoxy aniline derivativeBAYER AG·Filed 1987·Granted May 30, 1989·1 cites·6 claims
- 1632US4773915ABenzisothiazole azo dye for synthetic fibersBAYER AG·Filed 1987·Granted Sep 27, 1988·0 cites·4 claims
- 1731US4424156AHalo-substituted amino-and substituted-sulphonamido-containing azo dyestuffsBAYER AG·Filed 1980·Granted Jan 3, 1984·2 cites·4 claims
- 1830US5102994ADisperse azo dyestuffs containing a thiocyonate groupBAYER AG·Filed 1990·Granted Apr 7, 1992·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →