Utz-Hellmuth Felcht

Person

Bruchmuhlbach, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Preparation of water-soluble mixed cellulose ethers
- Patent number 4,650,863
- Issue date Mar 17, 1987
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ethers of beta-cyclodextrin and a process for their preparation
- Patent number 4,638,058
- Issue date Jan 20, 1987
- Hoechst Aktiengesellschaft
- Lothar Brandt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-soluble mixed ethers of .beta.-cyclodextrin and a process for...
- Patent number 4,582,900
- Issue date Apr 15, 1986
- Hoechst Aktiengesellschaft
- Lothar Brandt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparing water-soluble mixed cellulose ethers
- Patent number 4,550,161
- Issue date Oct 29, 1985
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for etherifying cellulose with alkyl monochloroacetates
- Patent number 4,526,961
- Issue date Jul 2, 1985
- Hoechst Aktiengesellschaft
- Eberhard Perplies
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Preparing cellulose ethers in a dimethoxyethane/(dispersing auxilia...
- Patent number 4,501,887
- Issue date Feb 26, 1985
- Hoechst Aktiengesellschaft
- Wolfgang Kornrumpf
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cellulose ethers having improved dispersing properties
- Patent number 4,474,950
- Issue date Oct 2, 1984
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dispersing auxiliary for preparing cellulose ethers
- Patent number 4,460,766
- Issue date Jul 17, 1984
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the manufacture of 1-halogen-1-oxo-.DELTA..sup.3 -phosp...
- Patent number 4,348,337
- Issue date Sep 7, 1982
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1-oxo-phospholane-chloro-hydrins
- Patent number 4,329,303
- Issue date May 11, 1982
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the manufacture of 3-acyl-2-alkyl- and 3-acyl-2-aryl-1,...
- Patent number 4,263,231
- Issue date Apr 21, 1981
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1-oxophosphol-.DELTA..sup.3 -enes
- Patent number 4,247,488
- Issue date Jan 27, 1981
- Hoechst Aktiengesellschaft
- Utz-Hellmuth Felcht
- C07 - ORGANIC CHEMISTRY

Utz-Hellmuth Felcht

Person

Patents Grantslast 30 patents

Preparation of water-soluble mixed cellulose ethers

Ethers of beta-cyclodextrin and a process for their preparation

Water-soluble mixed ethers of .beta.-cyclodextrin and a process for...

Preparing water-soluble mixed cellulose ethers

Process for etherifying cellulose with alkyl monochloroacetates

Preparing cellulose ethers in a dimethoxyethane/(dispersing auxilia...

Cellulose ethers having improved dispersing properties

Dispersing auxiliary for preparing cellulose ethers

Process for the manufacture of 1-halogen-1-oxo-.DELTA..sup.3 -phosp...

Process for the preparation of 1-oxo-phospholane-chloro-hydrins

Process for the manufacture of 3-acyl-2-alkyl- and 3-acyl-2-aryl-1,...

Process for the preparation of 1-oxophosphol-.DELTA..sup.3 -enes