Gerd Duembgen

Person

Dannstadt-Schauernheim, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.s...
- Patent number 5,221,767
- Issue date Jun 22, 1993
- BASF Aktiengesellschaft
- Karl-Heinz Boehning
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c...
- Patent number 5,173,468
- Issue date Dec 22, 1992
- BASF Aktiengesellschaft
- Karl-Heinz Boehning
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Preparation of methacrylic acid
- Patent number 5,087,744
- Issue date Feb 11, 1992
- BASF Aktiengesellschaft
- Richard Krabetz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process and catalyst for the preparation of methacrylic acid
- Patent number 4,925,823
- Issue date May 15, 1990
- BASF Aktiengesellschaft
- Richard Krabetz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of methyl methacrylate from methacrolein
- Patent number 4,638,085
- Issue date Jan 20, 1987
- BASF Aktiengesellschaft
- Franz J. Broecker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of methanol
- Patent number 4,623,668
- Issue date Nov 18, 1986
- BASF Aktiengesellschaft
- Franz J. Broecker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of methacrylic acid and catalyst therefor
- Patent number 4,595,778
- Issue date Jun 17, 1986
- BASF Aktiengesellschaft
- Gerd Duembgen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for the preparation of methyl methacrylate
- Patent number 4,520,125
- Issue date May 28, 1985
- BASF Aktiengesellschaft
- Karl Baer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of .alpha.-alkylacroleins
- Patent number 4,496,770
- Issue date Jan 29, 1985
- BASF Aktiengesellschaft
- Gerd Duembgen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for destroying phosgene
- Patent number 4,301,126
- Issue date Nov 17, 1981
- BASF Aktiengesellschaft
- Gerd Duembgen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Preparation of .alpha.,.beta.-olefinically unsaturated aldehydes of...
- Patent number 4,298,763
- Issue date Nov 3, 1981
- BASF Aktiengesellschaft
- Heinz Engelbach
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for the oxidation of acrolein and methacrolein to acrylic...
- Patent number 4,259,211
- Issue date Mar 31, 1981
- BASF Aktiengesellschaft
- Richard Krabetz
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacture of .gamma.-butyrolactone from maleic anhydride
- Patent number 4,192,807
- Issue date Mar 11, 1980
- BASF Aktiengesellschaft
- Franz J. Broecker
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of separating high-boiling or non-volatile materials
- Patent number 4,110,370
- Issue date Aug 29, 1978
- BASF Aktiengesellschaft
- Heinz Engelbach
- C07 - ORGANIC CHEMISTRY

Gerd Duembgen

Person

Patents Grantslast 30 patents

Compositions of the formula Mo.sub.12 P.sub.a V.sub.b X.sup.1 c X.s...

Compositions of the formula MO.sub.12 P.sub.a V.sub.b X.sup.1.sub.c...

Preparation of methacrylic acid

Process and catalyst for the preparation of methacrylic acid

Preparation of methyl methacrylate from methacrolein

Preparation of methanol

Preparation of methacrylic acid and catalyst therefor

Catalyst for the preparation of methyl methacrylate

Process for the preparation of .alpha.-alkylacroleins

Process for destroying phosgene

Preparation of .alpha.,.beta.-olefinically unsaturated aldehydes of...

Catalyst for the oxidation of acrolein and methacrolein to acrylic...

Manufacture of .gamma.-butyrolactone from maleic anhydride

Method of separating high-boiling or non-volatile materials