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John W. Soehngen
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Berkeley Heights, NJ, US
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last 30 patents
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Patent Grant
Process for preparing microporous hollow fibers
Patent number
4,290,987
Issue date
Sep 22, 1981
Celanese Corporation
John W. Soehngen
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Removing halogenated hydrocarbons from aqueous media by utilizing a...
Patent number
4,276,179
Issue date
Jun 30, 1981
Celanese Corporation
John W. Soehngen
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information
Patent Grant
Solvent stretch process for preparing a microporous film
Patent number
4,257,997
Issue date
Mar 24, 1981
Celanese Corporation
John W. Soehngen
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Solvent stretch process for preparing microporous films from precur...
Patent number
4,255,376
Issue date
Mar 10, 1981
Celanese Corporation
John W. Soehngen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Apparatus for preparation of matrices containing frangible particul...
Patent number
4,093,404
Issue date
Jun 6, 1978
Celanese Corporation
John W. Soehngen
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Process for preparing shear degradable particle-containing resin po...
Patent number
4,057,607
Issue date
Nov 8, 1977
Celanese Corporation
John W. Soehngen
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Carbon fiber production
Patent number
4,020,145
Issue date
Apr 26, 1977
Celanese Corporation
John W. Soehngen
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING