Freddy Helmer-Metzmann

Person

Essenheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method for absorbing contaminants
- Patent number 6,818,590
- Issue date Nov 16, 2004
- Ticona GmbH
- Freddy Helmer-Metzmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method for absorbing contaminants
- Patent number 6,383,396
- Issue date May 7, 2002
- Ticona GmbH
- Freddy Helmer-Metzmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Polymer foams
- Patent number 6,239,187
- Issue date May 29, 2001
- Ticona GmbH
- Wilfried Hatke
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer electrolyte membrane and process for the production thereof
- Patent number 6,214,488
- Issue date Apr 10, 2001
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Absorbents
- Patent number 6,132,622
- Issue date Oct 17, 2000
- Ticona GmbH
- Freddy Helmer-Metzmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Polymer electrolytes and process for their production
- Patent number 6,096,856
- Issue date Aug 1, 2000
- Hoechst Research & Technology Deutschland GmbH & Co. KG
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Stereorigid metallocene compound
- Patent number 6,063,949
- Issue date May 16, 2000
- Targor GmbH
- Michael Aulbach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrochemical cell
- Patent number 5,853,911
- Issue date Dec 29, 1998
- Hoechst Aktiengesellschaft
- Karl-Heinz Tetzlaff
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Homogeneous polymer alloys based on sulfonated aromatic polyetherke...
- Patent number 5,834,566
- Issue date Nov 10, 1998
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer electrolyte membrane for use in fuel cells and electrolysis...
- Patent number 5,741,408
- Issue date Apr 21, 1998
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrochemical cell
- Patent number 5,656,389
- Issue date Aug 12, 1997
- Hoechst Aktiengesellschaft
- Karl-Heinz Tetzlaff
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Polymer electrolyte membrane, and process for the production thereof
- Patent number 5,561,202
- Issue date Oct 1, 1996
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Homogeneous polymer alloys based on sulfonated aromatic polyether k...
- Patent number 5,510,424
- Issue date Apr 23, 1996
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Semipermeable membranes of homogeneously miscible polymer alloys
- Patent number 5,505,851
- Issue date Apr 9, 1996
- Hoechst Aktiengesellschaft
- Reinhard Wagener
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Polymer electrolyte membrane, and process for the production thereof
- Patent number 5,438,082
- Issue date Aug 1, 1995
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyether ketones and polyether sulfones based on phenylindane, and...
- Patent number 5,373,081
- Issue date Dec 13, 1994
- Hoechst Aktiengesellschaft
- Dazhong Yang
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymer electrolytes and their preparation
- Patent number 5,362,836
- Issue date Nov 8, 1994
- Hoechst Aktiengesellschaft
- Freddy Helmer-Metzmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method for absorbing contaminants
- Publication number 20020162799
- Publication date Nov 7, 2002
- Freddy Helmer-Metzmann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Freddy Helmer-Metzmann

Person

Patents Grantslast 30 patents

Method for absorbing contaminants

Method for absorbing contaminants

Polymer foams

Polymer electrolyte membrane and process for the production thereof

Absorbents

Polymer electrolytes and process for their production

Stereorigid metallocene compound

Electrochemical cell

Homogeneous polymer alloys based on sulfonated aromatic polyetherke...

Polymer electrolyte membrane for use in fuel cells and electrolysis...

Electrochemical cell

Polymer electrolyte membrane, and process for the production thereof

Homogeneous polymer alloys based on sulfonated aromatic polyether k...

Semipermeable membranes of homogeneously miscible polymer alloys

Polymer electrolyte membrane, and process for the production thereof

Polyether ketones and polyether sulfones based on phenylindane, and...

Polymer electrolytes and their preparation

Patents Applicationslast 30 patents

Method for absorbing contaminants