Siglinde Hemmann

Person

Meerbusch, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Olefinic diphosphonic acids, a process for their production, their...
- Patent number 4,962,229
- Issue date Oct 9, 1990
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxyacetonitrile diphosphonic acid, a process for its production...
- Patent number 4,908,138
- Issue date Mar 13, 1990
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxa-alkane polyphosphonic acids, their use as thresholders, and com...
- Patent number 4,892,679
- Issue date Jan 9, 1990
- Henkel Kommanditgeselsschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Olefinic diphosphonic acids, a process for their production, their...
- Patent number 4,880,575
- Issue date Nov 14, 1989
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for synthesis of azacycloalkane-2,2-diphosponic acids
- Patent number 4,876,339
- Issue date Oct 24, 1989
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Diphosponylated oxonitriles, processes and uses therefor, and compo...
- Patent number 4,719,050
- Issue date Jan 12, 1988
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
4-dimethylamino-1-hydroxybutane-1,1-diphosphonic acid, salts thereo...
- Patent number 4,624,947
- Issue date Nov 25, 1986
- Henkel Kommanditgesellschaft auf Aktien
- Helmut Blum
- C07 - ORGANIC CHEMISTRY

Siglinde Hemmann

Person

Patents Grantslast 30 patents

Olefinic diphosphonic acids, a process for their production, their...

Hydroxyacetonitrile diphosphonic acid, a process for its production...

Oxa-alkane polyphosphonic acids, their use as thresholders, and com...

Olefinic diphosphonic acids, a process for their production, their...

Process for synthesis of azacycloalkane-2,2-diphosponic acids

Diphosponylated oxonitriles, processes and uses therefor, and compo...

4-dimethylamino-1-hydroxybutane-1,1-diphosphonic acid, salts thereo...