Inventor · disambiguated record
William Kappel
Also filed as: KAPPEL WILLIAM K · KAPPEL WILLIAM KARL
4 granted patents·4 pending applications·50 citations·filing 2000–2006
77Inventor score
Files withSIGMA ALDRICH CO8
Top patents by PatentIndex Score
8 records- 0190US6623655B1Metal chelating compositionsSIGMA ALDRICH CO·Filed 2000·Granted Sep 23, 2003·28 cites·95 claims
- 0279US6825032B2High capacity assay platformsSIGMA ALDRICH CO·Filed 2001·Granted Nov 30, 2004·14 cites·60 claims
- 0369US7033520B2Metal chelating compositions for protein purification, detection or bindingSIGMA ALDRICH CO·Filed 2003·Granted Apr 25, 2006·7 cites·23 claims
- 0462US7709612B2Metal chelating compositions for protein purification, detection or bindingSIGMA ALDRICH CO·Filed 2006·Granted May 4, 2010·1 cites·17 claims
- 0552US2005119415A1High capacity assay platformsSIGMA ALDRICH CO·Filed 2004·Application pending·0 cites
- 0652US2005123968A1High capacity assay platformsSIGMA ALDRICH CO·Filed 2004·Application pending·0 cites
- 0752US2005118709A1High capacity assay platformsSIGMA ALDRICH CO·Filed 2004·Application pending·0 cites
- 0845US2004259162A1Solid phase cell lysis and capture platformSIGMA ALDRICH CO·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →