Klaus Ehl

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Surface-active compounds on the basis of arylated fatty substances...
- Patent number 5,008,442
- Issue date Apr 16, 1991
- Hoechst Aktiengesellschaft
- Heinz Uhrig
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Surface-active compounds on the basis of arylated fatty substances...
- Patent number 4,597,906
- Issue date Jul 1, 1986
- Hoechst Aktiengesellschaft
- Heinz Uhrig
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Recrystallization-resistant monoazo pigment mixtures of high tincto...
- Patent number 4,474,609
- Issue date Oct 2, 1984
- Hoechst Aktiengesellschaft
- Klaus Ehl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Anionic surface-active compounds based on oxyalkylated naphthol nov...
- Patent number 4,403,079
- Issue date Sep 6, 1983
- Hoechst Aktiengesellschaft
- Heinz Uhrig
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for the preparation of pigment formulations and their use
- Patent number 4,323,396
- Issue date Apr 6, 1982
- Hoechst Aktiengesellschaft
- Klaus Ehl
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...