Assignee
RUHRCHEMIE AG
DE·129 granted patents·1,421 citations·filing 1972–1989
Top patents by PatentIndex Score
129 records- 0193US5008473AProcess for purifying propanediol-1,3RUHRCHEMIE AG·Filed 1987·Granted Apr 16, 1991·57 cites·5 claims
- 0293US4483802AProcess for the preparation of sulfonated aryl phosphineRUHRCHEMIE AG·Filed 1983·Granted Nov 20, 1984·36 cites·11 claims
- 0392US4510182AMethod for the production of homogeneous coatings of two or more metals and/or metal compoundsRUHRCHEMIE AG·Filed 1984·Granted Apr 9, 1985·74 cites·17 claims
- 0490US4684750AProcess for the production of 2-ethyl-hexanolRUHRCHEMIE AG·Filed 1986·Granted Aug 4, 1987·37 cites·10 claims
- 0589US4523036AProcess for the preparation of aldehydesRUHRCHEMIE AG·Filed 1983·Granted Jun 11, 1985·28 cites·42 claims
- 0689US3956253APolyethylene molding compounds of high-wear resistanceRUHRCHEMIE AG·Filed 1975·Granted May 11, 1976·34 cites·14 claims
- 0788US4172091AProcess for the manufacture of β-(dimethylamino)-propionitrileRUHRCHEMIE AG·Filed 1978·Granted Oct 23, 1979·20 cites·9 claims
- 0886US4138588AProcess for the improved manufacture of 2-ethylhexanolRUHRCHEMIE AG·Filed 1978·Granted Feb 6, 1979·21 cites·4 claims
- 0985US4199523AProcess for the production of hydrocarbon mixturesRUHRCHEMIE AG·Filed 1978·Granted Apr 22, 1980·30 cites·21 claims
- 1084US4578523AProcess for the preparation of aldehydesRUHRCHEMIE AG·Filed 1985·Granted Mar 25, 1986·21 cites·5 claims
- 1184US4283564AProcess for preparing methacroleinRUHRCHEMIE AG·Filed 1979·Granted Aug 11, 1981·18 cites·14 claims
- 1284US4110391AProcess for the manufacture of molded articles from polyolefins with molecular weights of at least one millionRUHRCHEMIE AG·Filed 1977·Granted Aug 29, 1978·59 cites·13 claims
- 1383US4952734AProcess for the preparation of methylaminesRUHRCHEMIE AG·Filed 1988·Granted Aug 28, 1990·19 cites·19 claims
- 1483US4368142AMethanation catalystRUHRCHEMIE AG·Filed 1980·Granted Jan 11, 1983·22 cites·17 claims
- 1582US4752303AProcess for producing synthesis gas by partial oxidation of coal-water suspensionsRUHRCHEMIE AG·Filed 1987·Granted Jun 21, 1988·34 cites·6 claims
- 1682US4311854AProcess for the production of di-n-propyl-acetic acidRUHRCHEMIE AG·Filed 1979·Granted Jan 19, 1982·16 cites·13 claims
- 1781US4094914AProcess for the production of divalent alcoholsRUHRCHEMIE AG·Filed 1976·Granted Jun 13, 1978·15 cites·9 claims
- 1880US4593126AProcess for preparing aldehydesRUHRCHEMIE AG·Filed 1985·Granted Jun 3, 1986·16 cites·13 claims
- 1979US4577043AProcess for the preparation of aldehydesRUHRCHEMIE AG·Filed 1984·Granted Mar 18, 1986·18 cites·9 claims
- 2079US4515986AProcess for preparing 3-dimethylamino-2,2-dimethylpropanalRUHRCHEMIE AG·Filed 1981·Granted May 7, 1985·14 cites·11 claims
- 2179US4423156AProcess for preparing unsaturated hydrocarbonsRUHRCHEMIE AG·Filed 1983·Granted Dec 27, 1983·15 cites·9 claims
- 2278US3935285ARecovery of alcohols from esters formed during an oxo-synthesisRUHRCHEMIE AG·Filed 1972·Granted Jan 27, 1976·12 cites·7 claims
- 2377US4205013AProcess for the manufacture of 2,3-dimethylpentanalRUHRCHEMIE AG·Filed 1978·Granted May 27, 1980·10 cites·8 claims
- 2476US4795727ARhodium catalysts and methods of preparation and use thereofRUHRCHEMIE AG·Filed 1987·Granted Jan 3, 1989·12 cites·10 claims
- 2576US4740626AProcess for the preparation of aldehydesRUHRCHEMIE AG·Filed 1986·Granted Apr 26, 1988·14 cites·16 claims
- 2675US4723047AProcess for the preparation of nonadecanediolsRUHRCHEMIE AG·Filed 1986·Granted Feb 2, 1988·12 cites·14 claims
- 2774US4225515AIsomeric hydroxymethyl-formyl-tricyclo[5,2,1,02,6 ]decane mixture and process for manufacture thereofRUHRCHEMIE AG·Filed 1978·Granted Sep 30, 1980·15 cites·2 claims
- 2873US4710321AQuaternary ammonium salts of sulfonated triarylphosphines and process for the production thereofRUHRCHEMIE AG·Filed 1987·Granted Dec 1, 1987·10 cites·20 claims
- 2972US4455395AProcess for the production of unsaturated hydro-carbonsRUHRCHEMIE AG·Filed 1982·Granted Jun 19, 1984·11 cites·7 claims
- 3072US4453410AMethod and apparatus for locating material defects in hollow bodiesRUHRCHEMIE AG·Filed 1983·Granted Jun 12, 1984·15 cites·11 claims
- 3172US4299990AProcess for preparing aldehydesRUHRCHEMIE AG·Filed 1980·Granted Nov 10, 1981·10 cites·6 claims
- 3272US4215073AProcess for the production of diaminesRUHRCHEMIE AG·Filed 1979·Granted Jul 29, 1980·8 cites·8 claims
- 3371US4472526AProcess for producing ethanol and n-propanol from methanol and synthesis gasRUHRCHEMIE AG·Filed 1982·Granted Sep 18, 1984·8 cites·7 claims
- 3470US4862908AMineral oils and mineral oil distillates having improved flowability and method for producing sameRUHRCHEMIE AG·Filed 1987·Granted Sep 5, 1989·23 cites·25 claims
- 3570US4474579AProcess for improving the combustion of diesel engine fuelsRUHRCHEMIE AG·Filed 1982·Granted Oct 2, 1984·22 cites·32 claims
- 3670US4285875AProcess for preparing carboxylic acids by catalytic oxidation of aldehydesRUHRCHEMIE AG·Filed 1980·Granted Aug 25, 1981·9 cites·17 claims
- 3769US4731485AProcess for hydroformylation with rhodium catalysts and the separation of rhodium therefromRUHRCHEMIE AG·Filed 1987·Granted Mar 15, 1988·10 cites·11 claims
- 3869US3953332APurification of waste water containing organic and inorganic impuritiesRUHRCHEMIE AG·Filed 1974·Granted Apr 27, 1976·17 cites·7 claims
- 3968US4564642AProcess for the manufacture of unsaturated hydrocarbonsRUHRCHEMIE AG·Filed 1981·Granted Jan 14, 1986·9 cites·9 claims
- 4068US4481015ACoal-water suspensions, a method for their production, and their useRUHRCHEMIE AG·Filed 1982·Granted Nov 6, 1984·19 cites·9 claims
- 4167US4317945AProcess for preparing 2-methyl-2-sec.butyl-1,3-propanediolRUHRCHEMIE AG·Filed 1980·Granted Mar 2, 1982·8 cites·18 claims
- 4267US4078003AMethod for the preparation of 1,3-diamino-2,2-dimethyl propaneRUHRCHEMIE AG·Filed 1976·Granted Mar 7, 1978·9 cites·3 claims
- 4366US4801754AHydroformylation processRUHRCHEMIE AG·Filed 1987·Granted Jan 31, 1989·9 cites·2 claims
- 4466US4623490AProcess for the purification of sulfonated aryl phosphinesRUHRCHEMIE AG·Filed 1985·Granted Nov 18, 1986·9 cites·7 claims
- 4565US4883853ACopolymers of ethylene and 2,4,4-trimethylpentene-1RUHRCHEMIE AG·Filed 1987·Granted Nov 28, 1989·23 cites·14 claims
- 4665US4346239AProcess for the preparation of 2-methylene aldehydesRUHRCHEMIE AG·Filed 1980·Granted Aug 24, 1982·8 cites·15 claims
- 4765US4258214AProcess for the production of aldehydesRUHRCHEMIE AG·Filed 1979·Granted Mar 24, 1981·6 cites·9 claims
- 4864US4808757AProcess for the preparation of aldehydesRUHRCHEMIE AG·Filed 1988·Granted Feb 28, 1989·7 cites·16 claims
- 4964US4533755AProcess for the hydroformylation of olefinsRUHRCHEMIE AG·Filed 1983·Granted Aug 6, 1985·7 cites·9 claims
- 5064US4435603AMethod for preventing caking of polyolsRUHRCHEMIE AG·Filed 1981·Granted Mar 6, 1984·7 cites·17 claims
Showing the top 50 of 129 patent records by PatentIndex Score.
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