P

Inventor

WITTPAHL SANDRA

DE12 patents
⚠️ This page may combine multiple inventors who share the name “WITTPAHL SANDRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UMICORE AG & CO KG

7 patents
US6998149B2Feb 14, 2006

Process for producing a membrane electrode assembly for fuel cells

UMICORE AG & CO KG27 citations92
US7993499B2Aug 9, 2011

Membrane electrode unit for the electrolysis of water

UMICORE AG & CO KG23 citations89
US7754369B2Jul 13, 2010

Ink for producing membrane electrode assemblies for fuel cells

UMICORE AG & CO KG14 citations82
US8343321B2Jan 1, 2013

Membrane electrode unit for the electrolysis of water

UMICORE AG & CO KG7 citations81
US7141270B2Nov 28, 2006

Method for the production of membrane electrode assemblies for fuel cells

UMICORE AG & CO KG18 citations80
US7147959B2Dec 12, 2006

Process for the manufacture of membrane-electrode-assemblies using catalyst-coated membranes

UMICORE AG & CO KG2 citations60
US8021796B2Sep 20, 2011

Catalyst-coated ionomer membrane with protective film layer and membrane-electrode-assembly made thereof

UMICORE AG & CO KG3 citations59

ZUBER RALF

2 patents
US8394551B2Mar 12, 2013

Membrane electrode assembly for use in electrochemical devices

ZUBER RALF8 citations77
US8685200B2Apr 1, 2014

Process for manufacturing a catalyst-coated ionomer membrane with protective film layer

ZUBER RALF0 citations46

DEGUSSA HULS AKTINGESELLSCHAFT

1 patent
US6613159B1Sep 2, 2003

Flux for brazing difficult to wet metallic materials

DEGUSSA HULS AKTINGESELLSCHAFT27 citations87

DEGUSSA

1 patent
US6342106B1Jan 29, 2002

Flux-free brazing paste

DEGUSSA8 citations71

KOEHLER JOACHIM

1 patent
US8512912B2Aug 20, 2013

Membrane-electrode unit for direct methanol fuel cells (DMFC)

KOEHLER JOACHIM0 citations28