Ralf Zerrer

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Alzenau, DE

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Patents Grantslast 30 patents

Information Patent Grant
Polycondensates containing phosphinic and phosphonic acid groups
- Patent number 5,530,093
- Issue date Jun 25, 1996
- Cassella Aktiengesellschaft
- Fritz Engelhardt
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for the preparation of ether-sulphonates
- Patent number 5,523,471
- Issue date Jun 4, 1996
- Hoechst Aktiengesellschaft
- Klaus Delpy
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polycondensates containing phosphinic or phosphonic acid groups and...
- Patent number 5,492,995
- Issue date Feb 20, 1996
- Hoechst Aktiengsellschaft
- Fritz Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polycondensates containing polysiloxane groups
- Patent number 5,488,123
- Issue date Jan 30, 1996
- Cassella AG
- Fritz Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for dyeing polyester and polyester-containing textile mater...
- Patent number 5,425,785
- Issue date Jun 20, 1995
- Hoechst Mitsubishi Kasei Co.
- Ulrich Buhler
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...