Erich Dorra

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Duesseldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of highly concentrated pastes of .alpha....
- Patent number 5,391,782
- Issue date Feb 21, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Dietmar Colignon
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of light-colored pastes of .alpha.-sulfo...
- Patent number 5,391,783
- Issue date Feb 21, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Dietmar Colignon
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of light-colored .alpha.-sulfofatty acid...
- Patent number 5,384,422
- Issue date Jan 24, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Dietmar Colignon
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of highly concentrated pastes of .alpha....
- Patent number 5,382,677
- Issue date Jan 17, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Dietmar Colignon
- C07 - ORGANIC CHEMISTRY