Rainer Sperling
5Patents
1h-index
10Co-inventors
44Inventor score
Filing activity: Sep 8, 1994 → Jun 6, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6068926A | Carbon brush and process for impregnating same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5798178A | Carbon brush and process for impregnating same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7094366B2 | Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereof | Electricity | 0 | Expired |
| US8323548B2 | Method for manufacturing a multilayer compression moulded element | Electricity | 0 | Active |
| US7308759B2 | Method for production of a multi-layer carbon brush | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.