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Dinslaken, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Nitro compound-reducing process
Patent number
6,054,617
Issue date
Apr 25, 2000
Clariant GmbH
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for hydroformylation with rhodium catalysts and the separat...
Patent number
5,091,350
Issue date
Feb 25, 1992
Hoechst Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,879,418
Issue date
Nov 7, 1989
Hoechst Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,808,757
Issue date
Feb 28, 1989
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydroformylation process
Patent number
4,808,758
Issue date
Feb 28, 1989
Ruhrchemie Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydroformylation process
Patent number
4,801,754
Issue date
Jan 31, 1989
Ruhrchemie Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Rhodium catalysts and methods of preparation and use thereof
Patent number
4,795,727
Issue date
Jan 3, 1989
Ruhrchemie Aktiengesellschaft
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for hydroformylation with rhodium catalysts and the separat...
Patent number
4,731,485
Issue date
Mar 15, 1988
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of nonadecanediols
Patent number
4,723,047
Issue date
Feb 2, 1988
Ruhrchemie Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quaternary ammonium salts of sulfonated triarylphosphines and proce...
Patent number
4,710,321
Issue date
Dec 1, 1987
Ruhrchemie Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of 2-ethyl-hexanol
Patent number
4,684,750
Issue date
Aug 4, 1987
Ruhrchemie Aktiengesellschaft
Gunther Kessen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Quaternary ammonium salts of sulfonated triarylphosphines and proce...
Patent number
4,673,535
Issue date
Jun 16, 1987
Ruhrchemie Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the purification of sulfonated aryl phosphines
Patent number
4,623,490
Issue date
Nov 18, 1986
Ruhrchemie Aktiengesellschaft
Ludger Bexten
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of aldehydes
Patent number
4,616,096
Issue date
Oct 7, 1986
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing aldehydes
Patent number
4,593,126
Issue date
Jun 3, 1986
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,578,523
Issue date
Mar 25, 1986
Ruhrchemie Aktiengesellschaft
Helmut Bahrmann
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Selectively absorbent layer for solar collectors, and method of mak...
Patent number
4,551,328
Issue date
Nov 5, 1985
M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
Edwin Erben
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Process for the hydroformylation of olefins
Patent number
4,533,755
Issue date
Aug 6, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for purifying N,N-dimethylaminopropylamine
Patent number
4,532,354
Issue date
Jul 30, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of aldehydes
Patent number
4,523,036
Issue date
Jun 11, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Solar-selective layers and method for producing same
Patent number
4,511,439
Issue date
Apr 16, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Method for the production of homogeneous coatings of two or more me...
Patent number
4,510,182
Issue date
Apr 9, 1985
Ruhrchemie Aktiengesellschaft
Boy Cornils
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Process for the recovery of water-soluble hydroformylation catalyst...
Patent number
4,504,588
Issue date
Mar 12, 1985
Ruhrchemie Aktiengesellschaft
Roderich Gartner
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the preparation of sulfonated aryl phosphine
Patent number
4,483,802
Issue date
Nov 20, 1984
Ruhrchemie Aktiengesekkschaft
Roderich Gartner
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Coal/diesel fuel suspensions containing wax-like polymers
Patent number
4,474,578
Issue date
Oct 2, 1984
Ruhrchemie Aktiengesellschaft
Boy Cornils
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method of manufacturing absorption layers for solar energy systems...
Patent number
4,473,447
Issue date
Sep 25, 1984
Man Maschinenfabrik Augsburg-Nurnberg AG
Herbert Gutwein
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Process for producing ethanol and n-propanol from methanol and synt...
Patent number
4,472,526
Issue date
Sep 18, 1984
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preventing caking of polyols
Patent number
4,435,603
Issue date
Mar 6, 1984
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of gas mixtures containing hydrogen and...
Patent number
4,430,096
Issue date
Feb 7, 1984
Ruhrchemie Aktiengesellschaft
Friedrich Schnur
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for producing ethanol and n-propanol from methanol
Patent number
4,424,383
Issue date
Jan 3, 1984
Ruhrchemie Aktiengesellschaft
Boy Cornils
C07 - ORGANIC CHEMISTRY