Martin Hirsch
54Patents
15h-index
84Co-inventors
87Inventor score
Filing activity: Sep 4, 1975 → Feb 3, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5930764A | Sales and marketing support system using a customer information database | Physics | 828 | Expired |
| US5966695A | Sales and marketing support system using a graphical query prospect database | Physics | 696 | Expired |
| US4165717A | Process for burning carbonaceous materials | Mechanical Engineering; Lighting; Heating | 94 | Expired |
| US4444568A | Method of producing fuel gas and process heat fron carbonaceous materials | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US4111158A | Method of and apparatus for carrying out an exothermic process | Mechanical Engineering; Lighting; Heating | 60 | Expired |
| US4347064A | Process of gasifying fine-grained solid fuels | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4806158A | Process of reducing fine-grained iron-containing material by means of solid carbonaceous reducing agents | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4073642A | Method for reducing material containing iron oxides | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4539188A | Process of afterburning and purifying process exhaust gases | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5205350A | Process for cooling a hot process gas | Chemistry; Metallurgy | 25 | Expired |
| US5527379A | Process for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5603748A | Process and apparatus for a direct reduction of iron oxide containing materials to form Fe.sub.3 C | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5560762A | Process for the heat treatment of fine-grained iron ore and for the conversion of the heat treated iron ore to metallic iron | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5308585A | Process and apparatus for cooling hot solids coming from a fluidized bed reactor | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4676824A | Process for generating heat and producing sponge iron | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4789580A | Process of reducing higher metal oxides to lower metal oxides | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6368389B1 | Method for separating vaporous phthalic acid anhydride from a gas stream | Performing Operations; Transporting | 15 | Expired |
| US6015539A | Fluidized bed process for producing alumina from aluminum hydroxide | Chemistry; Metallurgy | 15 | Expired |
| US4996836A | Combined gas and steam turbine process | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4556402A | Process of gasifying solid fuels in a moving bed and in a fluidized bed | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5474592A | Method of reprocessing metallurgical residues, which contain zinc and lead | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5433767A | Direct reduction of iron oxide materials with solid carbonaceous reducing agents | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6666629B2 | Process for conveying granular solids | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6074456A | Process for hot briqueting granular sponge iron | Chemistry; Metallurgy | 8 | Expired |
| US5162107A | Method of reprocessing zinc- and lead-containing residues from metallurgical plants by means of a circulating fluidized bed system | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.