Inventor · disambiguated record
Karlfried Keller
Also filed as: KELLER KARLFRIED
7 granted patents·57 citations·filing 1975–1987
84Inventor score
Top patents by PatentIndex Score
7 records- 0187US4223141APreparation of methoxy-methyl melaminesCASSELLA FARBWERKE MAINKUR AG·Filed 1979·Granted Sep 16, 1980·17 cites·10 claims
- 0272US4143016APreparation of melamine derivativesCASSELLA FARBWERKE MAINKUR AG·Filed 1978·Granted Mar 6, 1979·7 cites·5 claims
- 0350US4822372AProcessing for tanning leatherCASSELLA FARBWERKE MAINKUR AG·Filed 1987·Granted Apr 18, 1989·7 cites·8 claims
- 0449US4043984AAminoplasts elasticized with benzoic acid estersCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Aug 23, 1977·6 cites·7 claims
- 0549US4039493AMelamine-formaldehyde condensates and mixtures thereofCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Aug 2, 1977·10 cites·10 claims
- 0637US4810252AProcess for tanning leatherHOECHST AG·Filed 1987·Granted Mar 7, 1989·3 cites·5 claims
- 0736US4079040ASulfo-containing phenol-formaldehyde condensatesCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Mar 14, 1978·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →