Membership
Tour
Register
Log in
Karl-Heinrich Bretz
Follow
Person
Nienburg, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for producing spherical catalyst particles, catalyst partic...
Patent number
6,465,382
Issue date
Oct 15, 2002
Solvay (Societe Anonyme)
Michel Strebelle
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for producing porous polymer globules
Patent number
6,300,468
Issue date
Oct 9, 2001
Solvay Deutschland GmbH
Karl-Heinz Bretz
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method of producing spherical particles
Patent number
5,736,118
Issue date
Apr 7, 1998
Solvay Deutschland GmbH
Helmut Derleth
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for catalytic treatment of effluents containing organic and...
Patent number
5,676,845
Issue date
Oct 14, 1997
Solvay Deutschland GmbH
Helmut Derleth
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Abrasion-resistant catalyst carrier formed of transition aluminas
Patent number
5,518,979
Issue date
May 21, 1996
Solvay Umweltchemie GmbH
Dirk Bonse
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Abrasion-resistant carrier catalyst
Patent number
5,507,956
Issue date
Apr 16, 1996
Solvay Unweltchemie GmbH
Dirk Bonse
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for preparing fracture-resistant sol/gel particles
Patent number
5,468,558
Issue date
Nov 21, 1995
Solvay Catalysts GmbH
Helmut Derleth
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Sorption of organic compounds from fluids
Patent number
5,421,860
Issue date
Jun 6, 1995
Engelhard Process Chemicals GmbH
Karl-Heinz Bretz
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Product and process for the production of granules of high mechanic...
Patent number
4,601,992
Issue date
Jul 22, 1986
Kali-Chemie Aktiengesellschaft
Helmut Derleth
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the production of spherical shaped bodies based on Al.s...
Patent number
4,341,663
Issue date
Jul 27, 1982
Kali-Chemie Aktiengesellschaft
Helmut Derleth
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing a substantially crystalline sodium aluminosil...
Patent number
4,248,847
Issue date
Feb 3, 1981
Kali-Chemie AG
Helmut Derleth
C01 - INORGANIC CHEMISTRY