Inventor · disambiguated record
Gerhard Wolfrum
Also filed as: HUGL HERBERT · KLAUKE ERICH · SOMMER RICHARD · WOLFRUEM GERHARD
50 granted patents·409 citations·filing 1966–2021
98Inventor score
Top patents by PatentIndex Score
50 records- 0195US4396710APhotographic recording material with metal complexable, heterocyclic azo dyeAGFA GEVAERT AG·Filed 1982·Granted Aug 2, 1983·41 cites·3 claims
- 0293US4132840AProcess for coloring polyurethane foamsBAYER AG·Filed 1976·Granted Jan 2, 1979·53 cites·2 claims
- 0389US4814271AMethod for detecting esterolytic and proteolytic enzymesMILES INC·Filed 1987·Granted Mar 21, 1989·31 cites·11 claims
- 0488US4637979AComposition and test device for determining the presence of leukocytes containing a zwitterion coupling agentMILES LAB·Filed 1984·Granted Jan 20, 1987·57 cites·15 claims
- 0587US4124581ADisazo dyestuffs containing a thiazole central componentBAYER AG·Filed 1976·Granted Nov 7, 1978·16 cites·6 claims
- 0687US4038240AProcess for dyeing polyurethane resinsBAYER AG·Filed 1975·Granted Jul 26, 1977·29 cites·21 claims
- 0786US4180503AAcid disazo dyestuffs containing a substituted thiophene middle componentBAYER AG·Filed 1975·Granted Dec 25, 1979·15 cites·5 claims
- 0884US4041024ASulfo containing monoazo dyestuffs containing a benzthiazole diazo moiety and an N-benzylamino anilino coupling componentBAYER AG·Filed 1972·Granted Aug 9, 1977·12 cites·1 claims
- 0981US4521506AMonoazo pyridinol dyes chelated or capable of being chelated with metal ions and their use for image productionAGFA GEVAERT AG·Filed 1984·Granted Jun 4, 1985·18 cites·3 claims
- 1080US11781278B2Unbalance arrangement for a compactor roller of a soil compactorHAMM AG·Filed 2021·Granted Oct 10, 2023·1 cites·20 claims
- 1178US4600681AColor photographic material with azo dicyanoimidazole dyesAGFA GEVAERT AG·Filed 1985·Granted Jul 15, 1986·15 cites·2 claims
- 1267US4119623AWater-soluble diphenylamine-azo-sulfatoalkoxyphenyl dyestuffsBAYER AG·Filed 1976·Granted Oct 10, 1978·6 cites·3 claims
- 1366US4218373AWater-soluble phenylazoaminonaphthol sulphonic acid dyestuffsBAYER AG·Filed 1978·Granted Aug 19, 1980·6 cites·4 claims
- 1464US4524123AChelatable 4-thienyl imidazole azo dyes, their use in color photographic recording materialAGFA GEVAERT AG·Filed 1984·Granted Jun 18, 1985·7 cites·2 claims
- 1561US4247460ADisazo dyestuff sulphuric acid esterBAYER AG·Filed 1978·Granted Jan 27, 1981·5 cites·3 claims
- 1660US4988616AMethod for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicatorsBAYER AG·Filed 1989·Granted Jan 29, 1991·19 cites·7 claims
- 1760US4711954A3-thienylazo dyes with a gamma-acid couplerBAYER AG·Filed 1986·Granted Dec 8, 1987·6 cites·4 claims
- 1860US4418143AColor photographic recording materialAGFA GEVAERT AG·Filed 1982·Granted Nov 29, 1983·6 cites·5 claims
- 1960US4000123AAminosulfonylphenyl-azo-indolyl dyestuffsBAYER AG·Filed 1975·Granted Dec 28, 1976·5 cites·3 claims
- 2059US3956267AIndole-containing disazo dyestuffs having a sulfatoalkyleneoxy-substituentBAYER AG·Filed 1974·Granted May 11, 1976·4 cites·11 claims
- 2158US11162231B2Soil-processing rollerHAMM AG·Filed 2019·Granted Nov 2, 2021·0 cites·15 claims
- 2258US4248774AP-Sulphophenoxy-phenylazo indolesBAYER AG·Filed 1978·Granted Feb 3, 1981·4 cites·3 claims
- 2357US4088651AAcylamino quinophthalone compoundsBAYER AG·Filed 1975·Granted May 9, 1978·4 cites·2 claims
- 2456US4461827AColor photographic recording material containing a non-diffusible dye releaser from which a complexible azo dye is released during developmentAGFA GEVAERT AG·Filed 1983·Granted Jul 24, 1984·5 cites·2 claims
- 2555US4249275AProcess for dyeing and printing cellulose fibresBAYER AG·Filed 1980·Granted Feb 10, 1981·5 cites·9 claims
- 2650US4757137AOrthotrifluoromethyl containing phenylazonaphthol dyestuffsBAYER AG·Filed 1983·Granted Jul 12, 1988·3 cites·4 claims
- 2750US4749813A4-alkyl-2-trifluoromethylanilinesBAYER AG·Filed 1982·Granted Jun 7, 1988·3 cites·3 claims
- 2849US4163013ADiphenylamine-azo-hydrocarbylsulfonylphenyl dyestuffsBAYER AG·Filed 1977·Granted Jul 31, 1979·3 cites·7 claims
- 2947US4439372AProcess for the preparation of styryl dyestuffsBAYER AG·Filed 1982·Granted Mar 27, 1984·3 cites·12 claims
- 3045US4243584AMonoazo dyestuffs containing diazo component substituted by disulfimide and trifluoromethyl groupsBAYER AG·Filed 1978·Granted Jan 6, 1981·2 cites·4 claims
- 3145US3994873AAzo dyestuffs containing sulfonylamino-sulfonyl groupsBAYER AG·Filed 1975·Granted Nov 30, 1976·3 cites·4 claims
- 3244US4159265APhenylazopyrazolo dyestuffs including disulfimide substituentBAYER AG·Filed 1978·Granted Jun 26, 1979·2 cites·2 claims
- 3343US4579817AColor photographic recording material containing dye-releasers releasing 6-arylazo-2-amino-3-pyridinol dyes which are chelatable with metal ionsAGFA GEVAERT AG·Filed 1984·Granted Apr 1, 1986·3 cites·4 claims
- 3441US4393132APhotographic recording material with arylazocyanoacetic ester dye releasersAGFA GEVAERT AG·Filed 1982·Granted Jul 12, 1983·2 cites·2 claims
- 3541US4179436AMonoazodyestuffs containing diphenamine and phenoxy componentsBAYER AG·Filed 1977·Granted Dec 18, 1979·2 cites·11 claims
- 3641US4060521ABenzene-azo-indole dyestuffsBAYER AG·Filed 1975·Granted Nov 29, 1977·2 cites·14 claims
- 3739US4369324AProcess for the preparation of 2-amino-6-nitrobenzothiazoleBAYER AG·Filed 1981·Granted Jan 18, 1983·1 cites·4 claims
- 3838US4059402ATransfer printing processBAYER AG·Filed 1976·Granted Nov 22, 1977·1 cites·8 claims
- 3938US4024126AAryl- or alkyl-sulphonyl aminosulphonylphenyl-azo-arylene-azo-phenyl dyestuffsBAYER AG·Filed 1972·Granted May 17, 1977·1 cites·8 claims
- 4037US4339380AAzo dyestuffsBAYER AG·Filed 1979·Granted Jul 13, 1982·1 cites·3 claims
- 4137US4008216ABenzenesulphonylbenzenesulphonamideazophenyl-or-naphthyl-azolhydroxyloweralkoxyphenyl dyestuffsBAYER AG·Filed 1975·Granted Feb 15, 1977·1 cites·11 claims
- 4236US4324723AMonoazo dyestuffsBAYER AG·Filed 1979·Granted Apr 13, 1982·1 cites·2 claims
- 4336US4113428AProcess for dyeing fibre materialsBAYER AG·Filed 1977·Granted Sep 12, 1978·1 cites·10 claims
- 4436US3945992AArylsulphonylaminosulphonylphenyl-azo-arylene-azo-phenyl dyestuffBAYER AG·Filed 1974·Granted Mar 23, 1976·1 cites·5 claims
- 4534US4231748AAzo dyestuffsBAYER AG·Filed 1978·Granted Nov 4, 1980·0 cites·2 claims
- 4634US4022763ASulfaphenyl-azo-phenyl-azo-aminophenyl dyestuffsBAYER AG·Filed 1971·Granted May 10, 1977·1 cites·5 claims
- 4733US4324722AWater-soluble substituted aminocarbonyl monoazo dyestuffsBAYER AG·Filed 1980·Granted Apr 13, 1982·1 cites·2 claims
- 4831US4013631AMonoazo dyestuffs containing an N-β-1,2,3-triazolylethyl anilino coupling componentBAYER AG·Filed 1966·Granted Mar 22, 1977·1 cites·11 claims
- 4931US3971770ADisulfimide disazo dyestuffsBAYER AG·Filed 1973·Granted Jul 27, 1976·0 cites·9 claims
- 5030US3978039ADisulphimidophenyl-azo-naphthyl-azo-aminophenyl dyestuffsBAYER AG·Filed 1974·Granted Aug 24, 1976·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →