Glenn E. Hoffman
21Patents
10h-index
19Co-inventors
72Inventor score
Filing activity: Oct 3, 1985 → May 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6648942B2 | Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus | Emerging Cross-Sectional Technologies | 61 | Expired |
| USD638476S1 | Vending machine for liquids | General | 35 | Expired |
| US6413295B2 | Iron production method of operation in a rotary hearth furnace and improved furnace apparatus | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6886585B1 | Soft grip drain | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6802886B2 | Method of producing a metallized briquette | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6749664B1 | Furnace hearth for improved molten iron production and method of operation | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6582491B2 | Method for producing molten iron in duplex furnaces | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6251156A | Method of producing molten iron in duplex furnaces | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4731112A | Method of producing ferro-alloys | Chemistry; Metallurgy | 11 | Expired |
| US4685964A | Method and apparatus for producing molten iron using coal | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6214087A | Treatment of iron oxide agglomerates before introduction into furnace | Chemistry; Metallurgy | 8 | Expired |
| US6685761B1 | Method for producing beneficiated titanium oxides | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4728358A | Iron bearing briquet and method of making | Chemistry; Metallurgy | 8 | Expired |
| USD894975S1 | Ice dispensing apparatus | General | 3 | Active |
| US7985389B2 | Direct processing of ferrotitania ores and sands | Emerging Cross-Sectional Technologies | 1 | Active |
| US8545593B2 | Direct processing of metallic ore concentrates into ferroalloys | Emerging Cross-Sectional Technologies | 1 | Active |
| US8420007B2 | Apparatus for direct smelting of zinc bearing compounds to produce metallic zinc | Emerging Cross-Sectional Technologies | 0 | Active |
| US11112161B1 | Ice machine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8043408B2 | Direct smelting of zinc bearing compounds to produce metallic zinc | Emerging Cross-Sectional Technologies | 0 | Active |
| US11041668B2 | Ice machine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9404165B2 | Producing of pig iron from iron-containing materials | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.