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Erich Ruf
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Essen, DE
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last 30 patents
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Patent Grant
Electrically conductive tin-IV-oxide and method for production thereof
Patent number
5,269,970
Issue date
Dec 14, 1993
Th. Goldschmidt AG
Erich Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for the preparation of tetraalkyl-tin
Patent number
5,087,711
Issue date
Feb 11, 1992
Th. Goldschmidt AG
Erich Ruf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrically conducting, IR reflecting, fluorine-doped tin oxide or...
Patent number
5,085,805
Issue date
Feb 4, 1992
Th. Goldschmidt AG
Erich Ruf
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for the preparation of anhydrous tin-(IV)-carboxylates
Patent number
5,068,373
Issue date
Nov 26, 1991
Th. Goldschmidt AG
Erich Ruf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of dialkyl-tin-dichlorides
Patent number
5,055,603
Issue date
Oct 8, 1991
Th. Goldschmidt AG
Erich Ruf
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for the production of electrically conducting, IR reflecting...
Patent number
5,043,186
Issue date
Aug 27, 1991
Th. Goldschmidt AG
Erich Ruf
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Liquid preparation for the production of electrically conductive an...
Patent number
5,032,319
Issue date
Jul 16, 1991
Th. Goldschmidt AG
Erich Ruf
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Liquid preparation for the production of electrically conductive an...
Patent number
4,965,137
Issue date
Oct 23, 1990
Th. Goldschmidt AG
Erich Ruf
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Liquid preparation for the production of electrically conductive an...
Patent number
4,963,437
Issue date
Oct 16, 1990
Th. Goldschmidt AG
Erich Ruf
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Use of modified polyethylene for finishing glass surfaces
Patent number
4,908,237
Issue date
Mar 13, 1990
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified polyethylene, method for its preparation and method for fi...
Patent number
4,847,121
Issue date
Jul 11, 1989
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified polyethylene, method for its preparation and method for fi...
Patent number
4,834,950
Issue date
May 30, 1989
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Aqueous polyethylene dispersions, their production and methods for...
Patent number
4,806,362
Issue date
Feb 21, 1989
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Modified polyethylene, methods for its preparation and methods for...
Patent number
4,803,099
Issue date
Feb 7, 1989
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Use of modified polyethylene for finishing glass surfaces
Patent number
4,792,494
Issue date
Dec 20, 1988
Th. Goldschmidt AG
Erich Ruf
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for coloring aluminum electrolytically with metal salts
Patent number
4,401,525
Issue date
Aug 30, 1983
Th. Goldschmidt AG
Erich Ruf
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Process for producing tin (II) sulfate
Patent number
4,118,293
Issue date
Oct 3, 1978
TH. Goldschmidt AG
Erich Ruf
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR