John J. Steger
33Patents
18h-index
56Co-inventors
84Inventor score
Filing activity: Mar 30, 1978 → Jun 3, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6171556A | Method and apparatus for treating an engine exhaust gas stream | Emerging Cross-Sectional Technologies | 152 | Expired |
| US5357908A | Fuel modification method and apparatus for reduction of pollutants emitted from internal combustion engines | Emerging Cross-Sectional Technologies | 101 | Expired |
| US6764665B2 | Layered catalyst composite | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5898014A | Catalyst composition containing oxygen storage components | Emerging Cross-Sectional Technologies | 62 | Expired |
| US6214303A | Method and apparatus for treating the atmosphere | Performing Operations; Transporting | 60 | Expired |
| US4721558A | Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide | Chemistry; Metallurgy | 53 | Expired |
| US7722829B2 | Pressure-balanced, catalyzed soot filter | Mechanical Engineering; Lighting; Heating | 45 | Active |
| US6237575A | Dynamic infrared sensor for automotive pre-vaporized fueling control | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5981427A | Catalyst composition | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5419121A | Method and apparatus for reduction of pollutants emitted from automotive engines by flame incineration | Emerging Cross-Sectional Technologies | 33 | Expired |
| US7524465B2 | Multi-zone catalytic converter | Emerging Cross-Sectional Technologies | 32 | Active |
| US5888464A | Catalyst composition containing an intimately combined cerium-zirconium oxide | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4595668A | Bound zeolite catalyst | Performing Operations; Transporting | 24 | Expired |
| US4552856A | Zeolite catalyst and preparation thereof | Performing Operations; Transporting | 23 | Expired |
| US4595670A | Zeolite catalyst | Performing Operations; Transporting | 23 | Expired |
| US6340066B1 | Pollutant treating devices and methods of making the same | Performing Operations; Transporting | 22 | Expired |
| US4824820A | Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal, amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide | Chemistry; Metallurgy | 22 | Expired |
| US4648960A | Bound zeolite catalyst and process for using said catalyst | Performing Operations; Transporting | 20 | Expired |
| US4361714A | Preparation of linear olefin products | Chemistry; Metallurgy | 18 | Expired |
| US7578285B2 | Hydrocarbon adsorption filter for air intake system evaporative emission control | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4634517A | Zeolite catalyst and process for using said catalyst (C-1591) | Performing Operations; Transporting | 15 | Expired |
| US8372477B2 | Polymeric trap with adsorbent | Performing Operations; Transporting | 14 | Active |
| US6193504A | Portable rotary catalytic oxidizer systems | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4130492A | MXY.sub.3 solid lubricants | Chemistry; Metallurgy | 10 | Expired |
| US6156283A | Hydrophobic catalytic materials and method of forming the same | Performing Operations; Transporting | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.