Sandra Wittpahl
12Patents
5h-index
22Co-inventors
62Inventor score
Filing activity: May 5, 2000 → Aug 31, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7993499B2 | Membrane electrode unit for the electrolysis of water | Emerging Cross-Sectional Technologies | 15 | Active |
| US6613159B1 | Flux for brazing difficult to wet metallic materials | Performing Operations; Transporting | 13 | Expired |
| US6998149B2 | Process for producing a membrane electrode assembly for fuel cells | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7754369B2 | Ink for producing membrane electrode assemblies for fuel cells | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7141270B2 | Method for the production of membrane electrode assemblies for fuel cells | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8394551B2 | Membrane electrode assembly for use in electrochemical devices | Emerging Cross-Sectional Technologies | 5 | Active |
| US8343321B2 | Membrane electrode unit for the electrolysis of water | Emerging Cross-Sectional Technologies | 4 | Active |
| US6342106B1 | Flux-free brazing paste | Performing Operations; Transporting | 3 | Expired |
| US8021796B2 | Catalyst-coated ionomer membrane with protective film layer and membrane-electrode-assembly made thereof | Emerging Cross-Sectional Technologies | 1 | Active |
| US7147959B2 | Process for the manufacture of membrane-electrode-assemblies using catalyst-coated membranes | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8685200B2 | Process for manufacturing a catalyst-coated ionomer membrane with protective film layer | Emerging Cross-Sectional Technologies | 0 | Active |
| US8512912B2 | Membrane-electrode unit for direct methanol fuel cells (DMFC) | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.