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Patents Grants
last 30 patents
Information
Patent Grant
Process for the manufacture of polyolefins
Patent number
4,370,458
Issue date
Jan 25, 1983
Ruhrchemie AG
Jurgen Falbe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of 2-methylene aldehydes
Patent number
4,346,239
Issue date
Aug 24, 1982
Ruhrchemie AG
Hanswilhelm Bach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Striking cap lining
Patent number
4,345,656
Issue date
Aug 24, 1982
Ruhrchemie AG
Josef Berzen
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Process for preparing aldehydes
Patent number
4,299,990
Issue date
Nov 10, 1981
Ruhrchemie AG
Hans Tummes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing methacrolein
Patent number
4,283,564
Issue date
Aug 11, 1981
Ruhrchemie AG
Wolfgang Bernhagen
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of divalent alcohols
Patent number
4,094,914
Issue date
Jun 13, 1978
Ruhrchemie Aktiengesellschaft
Walter Rottig
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of 1,3-diamino-2,2-dimethyl propane
Patent number
4,078,003
Issue date
Mar 7, 1978
Ruhrchemie Aktiengesellschaft
Hans Feichtinger
Information
Patent Grant
4,4'-Thio-bis-(dialkylphenol)/formaldehyde condensates and process...
Patent number
4,072,659
Issue date
Feb 7, 1978
Ruhrchemie AG
Hans Feichtinger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for purifying the waste water produced in the process of pr...
Patent number
4,066,835
Issue date
Jan 3, 1978
Ruhrchemie AG
Heinz-Dieter Hahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of polyethylene having molecular weights...
Patent number
4,059,720
Issue date
Nov 22, 1977
Ruhrchemie Aktiengesellschaft
Helmut Kolling
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the manufacture of bis-(2-cyanoethyl)-amine
Patent number
4,055,586
Issue date
Oct 25, 1977
Ruhrchemie Aktiengesellschaft
Hans Feichtinger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing a synthesis gas suitable as starting material...
Patent number
4,048,233
Issue date
Sep 13, 1977
Ruhrchemie Aktiengesellschaft
Jurgen Falbe
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for polymerization of ethylene
Patent number
4,042,767
Issue date
Aug 16, 1977
Ruhrchemie Aktiengesellschaft
Wolfgang Payer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for the preparation of pure n-aldehydes
Patent number
4,041,081
Issue date
Aug 9, 1977
Ruhrchemie Aktiengesellschaft
Ludger Bexten
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of primary amines
Patent number
4,041,080
Issue date
Aug 9, 1977
Ruhrchemie Aktiengesellschaft
Herbert Gothel
Information
Patent Grant
Catalytic cleavage of isobutyraldehyde
Patent number
4,039,584
Issue date
Aug 2, 1977
Ruhrchemie Aktiengesellschaft
Jurgen Falbe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for adhesive bonding and coating
Patent number
4,032,692
Issue date
Jun 28, 1977
Ruhrchemie Aktiengesellschaft
Hans-Walter Birnkraut
B32 - LAYERED PRODUCTS
Information
Patent Grant
Chromium-containing catalyst systems and their use for the polymeri...
Patent number
4,013,822
Issue date
Mar 22, 1977
Ruhrchemie Aktiengesellschaft
Hans Feichtinger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of azomethines
Patent number
4,003,921
Issue date
Jan 18, 1977
Ruhrchemie Aktiengesellschaft
Werner Kluy
Information
Patent Grant
Polyethylene containing diphenyl thiourea thermal stabilizers
Patent number
3,994,846
Issue date
Nov 30, 1976
Ruhrchemie Aktiengesellschaft
Bela Tihanyi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the separation of cobalt from primary products of the o...
Patent number
3,993,695
Issue date
Nov 23, 1976
Ruhrchemie Aktiengesellschaft
Hans Tummes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Reactor for the production of oxygen containing compounds
Patent number
3,988,117
Issue date
Oct 26, 1976
Ruhrchemie Aktiengesellschaft
Friedrich Schnur
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for adhesive bonding and coating
Patent number
3,971,690
Issue date
Jul 27, 1976
Ruhrchemie Aktiengesellschaft
Hans-Walter Birnkraut
B32 - LAYERED PRODUCTS
Information
Patent Grant
Polyethylene molding compounds of high-wear resistance
Patent number
3,956,253
Issue date
May 11, 1976
Ruhrchemie Aktiengesellschaft
Gunther Braun
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Purification of waste water containing organic and inorganic impuri...
Patent number
3,953,332
Issue date
Apr 27, 1976
Ruhrchemie Aktiengesellschaft
Sebastian Speth
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Flameproof moulding compositions based on polyolefins
Patent number
3,943,194
Issue date
Mar 9, 1976
Hoechst Aktiengesellschaft
Franz-Josef Dany
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Recovery of alcohols from esters formed during an oxo-synthesis
Patent number
3,935,285
Issue date
Jan 27, 1976
Ruhrchemie AG
Hans Tummes
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Flameproof moulding compositions based on polyolefins
Patent number
3,931,101
Issue date
Jan 6, 1976
Hoechst Aktiengesellschaft
Franz-Josef Dany
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Flameproof moulding compositions based on polyolefins
Patent number
3,931,081
Issue date
Jan 6, 1976
Hoechst Aktiengesellschaft
Franz-Josef Dany
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...