Arnold Alscher

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Liquifiers and their preparation
- Patent number 4,921,543
- Issue date May 1, 1990
- Rutgerswerke AG
- Jafar Omran
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Novel method for extraction of salts from coal tar and pitches
- Patent number 4,871,443
- Issue date Oct 3, 1989
- Rutgerswerke AG
- Herbert Beneke
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for the modification of wood
- Patent number 4,377,040
- Issue date Mar 22, 1983
- Rutgerswerke Aktiengesellschaft
- Eberhard Giebeler
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Process for the transalkylation of nuclear methylated phenols
- Patent number 4,149,019
- Issue date Apr 10, 1979
- Rutgerswerke Aktiengesellschaft
- Arnold Alscher
- C07 - ORGANIC CHEMISTRY