Inventor · disambiguated record
Klaus Ehl
Also filed as: EHL KLAUS
5 granted patents·36 citations·filing 1981–1986
79Inventor score
Files withHOECHST AG5
Top patents by PatentIndex Score
5 records- 0168US4323396AProcess for the preparation of pigment formulations and their useHOECHST AG·Filed 1981·Granted Apr 6, 1982·8 cites·12 claims
- 0251US4474609ARecrystallization-resistant monoazo pigment mixtures of high tinctorial strength, process for their preparation and their useHOECHST AG·Filed 1983·Granted Oct 2, 1984·13 cites·7 claims
- 0345US4597906ASurface-active compounds on the basis of arylated fatty substances and their useHOECHST AG·Filed 1983·Granted Jul 1, 1986·8 cites·10 claims
- 0439US4403079AAnionic surface-active compounds based on oxyalkylated naphthol novolacs and their useHOECHST AG·Filed 1982·Granted Sep 6, 1983·5 cites·10 claims
- 0532US5008442ASurface-active compounds on the basis of arylated fatty substances and their useHOECHST AG·Filed 1986·Granted Apr 16, 1991·2 cites·8 claims
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