Ekkehard Wienhofer

Person

Marl, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing nonionic surfactants low in alkylene oxides...
- Patent number 5,321,167
- Issue date Jun 14, 1994
- Huls Aktiengesellschaft
- Egbert Schroer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing nonionic surfactants low in alkylene oxides...
- Patent number 5,194,641
- Issue date Mar 16, 1993
- Huels Aktiengesellschaft
- Egbert Schroer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fire retardant fine particulate expandable styrene polymers
- Patent number 4,419,458
- Issue date Dec 6, 1983
- Chemische Werke Huls AG
- Josef K. Rigler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fire retardant fine particulate expandable styrene polymers
- Patent number 4,418,156
- Issue date Nov 29, 1983
- Chemische Werke Huls AG
- Josef K. Rigler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fire retardant particulate expandable styrene polymers
- Patent number 4,407,977
- Issue date Oct 4, 1983
- Chemische Werke Huls Aktiengesellschaft
- Josef K. Rigler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fire retardant fine particulate expandable styrene polymers
- Patent number 4,393,146
- Issue date Jul 12, 1983
- Chemische Werke Huls AG
- Josef K. Rigler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for separating hydrogen chloride and hydrogen bromide
- Patent number 4,254,092
- Issue date Mar 3, 1981
- Chemische Werke Huls AG
- Alfred Coenen
- C01 - INORGANIC CHEMISTRY

Ekkehard Wienhofer

Person

Patents Grantslast 30 patents

Method of manufacturing nonionic surfactants low in alkylene oxides...

Method of manufacturing nonionic surfactants low in alkylene oxides...

Fire retardant fine particulate expandable styrene polymers

Fire retardant fine particulate expandable styrene polymers

Fire retardant particulate expandable styrene polymers

Fire retardant fine particulate expandable styrene polymers

Method for separating hydrogen chloride and hydrogen bromide