Ralph Weber
21Patents
8h-index
38Co-inventors
75Inventor score
Filing activity: Oct 3, 1979 → Nov 23, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4946498A | Process for the production of steel from fine ore hot briquetted after fluidized bed reduction | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6322745A | Direct smelting vessel and direct smelting process | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4389043A | Metallurgical melting and refining unit | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4448402A | Apparatus for directly making liquid pig-iron from coarse iron ore | Chemistry; Metallurgy | 26 | Expired |
| US4317677A | Process for producing liquid crude iron and reduction gas | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4852858A | Charging material preheater for preheating charging material for a metallurgical smelting unit | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4409023A | Process for directly making liquid pig-iron from coarse iron ore | Chemistry; Metallurgy | 13 | Expired |
| US8398949B2 | Carbon nanotube powder, carbon nanotubes, and processes for their production | Emerging Cross-Sectional Technologies | 10 | Active |
| US4586897A | Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4392637A | Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4881972A | Process for feeding heat energy into a molten metal bath | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4949940A | Charging arrangement for shaft furnaces, in particular blast furnaces | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4736930A | Closure apparatus for a tap hole | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US9422162B2 | Carbon nanotube agglomerate | Emerging Cross-Sectional Technologies | 3 | Active |
| US5403378A | Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace | Chemistry; Metallurgy | 3 | Expired |
| US5571475A | Reducing and smelting furnace having filter layer | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10294198B2 | Method for producing xylylene diisocyanates in the gaseous phase | Chemistry; Metallurgy | 1 | Active |
| US5364448A | Process for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the process | Emerging Cross-Sectional Technologies | 0 | Expired |
| US11795260B2 | Bulk material comprising solid diisocyanates and prepolymers containing urethane groups obtainable therefrom | Chemistry; Metallurgy | 0 | Active |
| US10307727B2 | Method for processing hydrogen chloride from isocyanate preparation | Emerging Cross-Sectional Technologies | 0 | Active |
| US7425234B2 | Iron oxide pigments | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.