Inventor · disambiguated record
Sandra Wittpahl
Also filed as: WITTPAHL SANDRA
12 granted patents·2 pending applications·137 citations·filing 1998–2011
91Inventor score
Top patents by PatentIndex Score
14 records- 0187US8343321B2Membrane electrode unit for the electrolysis of waterUMICORE AG & CO KG·Filed 2011·Granted Jan 1, 2013·7 cites·10 claims
- 0285US6998149B2Process for producing a membrane electrode assembly for fuel cellsUMICORE AG & CO KG·Filed 2001·Granted Feb 14, 2006·27 cites·21 claims
- 0382US7993499B2Membrane electrode unit for the electrolysis of waterUMICORE AG & CO KG·Filed 2004·Granted Aug 9, 2011·23 cites·11 claims
- 0477US6613159B1Flux for brazing difficult to wet metallic materialsDEGUSSA HULS AKTINGESELLSCHAFT·Filed 2000·Granted Sep 2, 2003·27 cites·18 claims
- 0576US7141270B2Method for the production of membrane electrode assemblies for fuel cellsUMICORE AG & CO KG·Filed 2002·Granted Nov 28, 2006·18 cites·8 claims
- 0674US7754369B2Ink for producing membrane electrode assemblies for fuel cellsUMICORE AG & CO KG·Filed 2001·Granted Jul 13, 2010·14 cites·14 claims
- 0758US8394551B2Membrane electrode assembly for use in electrochemical devicesZUBER RALF·Filed 2004·Granted Mar 12, 2013·8 cites·16 claims
- 0857US8021796B2Catalyst-coated ionomer membrane with protective film layer and membrane-electrode-assembly made thereofUMICORE AG & CO KG·Filed 2003·Granted Sep 20, 2011·3 cites·11 claims
- 0954US8685200B2Process for manufacturing a catalyst-coated ionomer membrane with protective film layerZUBER RALF·Filed 2011·Granted Apr 1, 2014·0 cites·15 claims
- 1052US7147959B2Process for the manufacture of membrane-electrode-assemblies using catalyst-coated membranesUMICORE AG & CO KG·Filed 2002·Granted Dec 12, 2006·2 cites·20 claims
- 1146US2005014056A1Membrane electrode unit for electrochemical equipmentUMICORE AG & CO KG·Filed 2003·Application pending·0 cites
- 1243US2009053583A1Gas diffusion electrode and process for producing it and its useUMICORE AG & CO KG·Filed 2006·Application pending·0 cites
- 1339US6342106B1Flux-free brazing pasteDEGUSSA·Filed 1998·Granted Jan 29, 2002·8 cites·12 claims
- 1436US8512912B2Membrane-electrode unit for direct methanol fuel cells (DMFC)KOEHLER JOACHIM·Filed 2005·Granted Aug 20, 2013·0 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →