Marcel Feld

Person

Kolen, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing cyclopropanecarboxylates of lower alcohols
- Patent number 6,730,804
- Issue date May 4, 2004
- Degussa AG
- Manfred Kaufhold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Enantiomerically enriched malonic acid monoesters substituted by a...
- Patent number 6,613,934
- Issue date Sep 2, 2003
- Degussa AG
- Udo Jegelka
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Process for preparing potassium monoethyl malonate
- Patent number 6,580,004
- Issue date Jun 17, 2003
- Degussa AG
- Juergen Muhr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of amino acid derivatives
- Patent number 6,399,809
- Issue date Jun 4, 2002
- Degussa AG
- Wolfgang Kleemiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing potassium monoethyl malonate
- Patent number 6,172,257
- Issue date Jan 9, 2001
- Creanova Spezialchemie GmbH
- Juergen Muhr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for removing mercury from alkali metal alkoxide solutions
- Patent number 6,156,214
- Issue date Dec 5, 2000
- Huels Aktiengesellschaft
- Marcus Bongen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of methoxyacetic acid esters
- Patent number 6,143,920
- Issue date Nov 7, 2000
- Huels Aktiengesellschaft
- Wolfgang Kleemiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of macrocyclic esters
- Patent number 6,121,466
- Issue date Sep 19, 2000
- Huels Aktiengesellschaft
- Clemens Osterholt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of cyclopropylamine
- Patent number 6,107,522
- Issue date Aug 22, 2000
- Degussa-Huels Aktiengesellschaft
- Wolfgang Kleemiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for nitrosation of C-H-acidic compounds
- Patent number 5,861,533
- Issue date Jan 19, 1999
- Huels Aktiengesellschaft
- Frank Bauer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aminomalonic acid ester salts
- Patent number 5,847,197
- Issue date Dec 8, 1998
- Huels Aktiengesellschaft
- Frank Bauer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aminoacetic acids with a tertiary hy...
- Patent number 5,831,119
- Issue date Nov 3, 1998
- Huels Aktiengesellschaft
- Frank Bauer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing hydroxymethylcyclopropane
- Patent number 5,767,326
- Issue date Jun 16, 1998
- Huels Aktiengesellschaft
- Wolfgang Kleemiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the continuous preparation of macrocyclic compounds
- Patent number 5,717,111
- Issue date Feb 10, 1998
- Huels Aktiengesellschaft
- Guenther Koehler
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing cyclopropyl alkyl ketones and 4,5-dihydroalky...
- Patent number 5,629,455
- Issue date May 13, 1997
- Huels Aktiengesellschaft
- Manfred Kaufhold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1-aminocyclopropanecarboxylic acid h...
- Patent number 5,569,781
- Issue date Oct 29, 1996
- Huels Aktiengesellschaft
- Wolfgang Kleemiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of alkali metal salts of cyanoacetone
- Patent number 5,481,019
- Issue date Jan 2, 1996
- Huels Aktiengesellschaft
- Jurgen Muhr
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-cyanoacetoxypropionic esters
- Patent number 5,412,146
- Issue date May 2, 1995
- Huels Aktiengesellschaft
- Manfred Kaufhold
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of sodium thiobarbiturate
- Patent number 5,274,093
- Issue date Dec 28, 1993
- Huels Aktiengesellschaft
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-(methylthio)barbituric acid
- Patent number 5,097,030
- Issue date Mar 17, 1992
- Huels Aktiengesellschaft
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the preparation of 2,6-naphthalene dicarboxylic acid
- Patent number 4,764,638
- Issue date Aug 16, 1988
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing halogen benzoic acids from toluenes halogenated...
- Patent number 4,605,757
- Issue date Aug 12, 1986
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of aromatic monocarboxylic acids from t...
- Patent number 4,603,220
- Issue date Jul 29, 1986
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the recovery and reuse of cobalt and/or manganese compon...
- Patent number 4,490,297
- Issue date Dec 25, 1984
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of isolating cobalt and/or manganese as oxalates
- Patent number 4,490,298
- Issue date Dec 25, 1984
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the recovery of cobalt oxalate and/or manganese oxalate
- Patent number 4,488,999
- Issue date Dec 18, 1984
- Dynamit Nobel AG
- Marcel Feld
- C07 - ORGANIC CHEMISTRY

Marcel Feld

Person

Patents Grantslast 30 patents

Process for preparing cyclopropanecarboxylates of lower alcohols

Enantiomerically enriched malonic acid monoesters substituted by a...

Process for preparing potassium monoethyl malonate

Process for the preparation of amino acid derivatives

Process for preparing potassium monoethyl malonate

Process for removing mercury from alkali metal alkoxide solutions

Process for the preparation of methoxyacetic acid esters

Process for the preparation of macrocyclic esters

Process for the preparation of cyclopropylamine

Process for nitrosation of C-H-acidic compounds

Process for the preparation of aminomalonic acid ester salts

Process for the preparation of aminoacetic acids with a tertiary hy...

Process for preparing hydroxymethylcyclopropane

Process for the continuous preparation of macrocyclic compounds

Process for preparing cyclopropyl alkyl ketones and 4,5-dihydroalky...

Process for the preparation of 1-aminocyclopropanecarboxylic acid h...

Process for the preparation of alkali metal salts of cyanoacetone

Process for the preparation of 2-cyanoacetoxypropionic esters

Process for the preparation of sodium thiobarbiturate

Process for the preparation of 2-(methylthio)barbituric acid

Method for the preparation of 2,6-naphthalene dicarboxylic acid

Method of preparing halogen benzoic acids from toluenes halogenated...

Process for the preparation of aromatic monocarboxylic acids from t...

Method for the recovery and reuse of cobalt and/or manganese compon...

Method of isolating cobalt and/or manganese as oxalates

Method for the recovery of cobalt oxalate and/or manganese oxalate