Wilhelm Schiffer
9Patents
3h-index
17Co-inventors
54Inventor score
Filing activity: Dec 5, 1983 → Nov 16, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5127346A | Burner arrangement for the combustion of fine-grained to dusty solid fuel | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4804408A | A mill arrangement and a process of operating the same using off gases to refine pig iron | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4617671A | Arrangement for producing metals, such as molten pig iron, steel pre-material and ferroalloys | Chemistry; Metallurgy | 6 | Expired |
| US4533385A | Method for producing metals, such as molten pig iron, steel pre-material and ferroalloys | Chemistry; Metallurgy | 3 | Expired |
| US6511629B1 | Shaft furnace | Chemistry; Metallurgy | 3 | Expired |
| US5271609A | Plant comprising a shaft | Chemistry; Metallurgy | 2 | Expired |
| US8202474B2 | Conveyor system, composite system and method for coupling metallurgical methods | Emerging Cross-Sectional Technologies | 1 | Active |
| US7858021B2 | Conveyor system, composite system and method for coupling metallurgical methods | Emerging Cross-Sectional Technologies | 1 | Active |
| US4867787A | Mill arrangement with temporary storage vessel and a process of operating the same | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.