Ravi Kumar
49Patents
26h-index
65Co-inventors
88Inventor score
Filing activity: Aug 5, 1982 → Jan 22, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4711645A | Removal of water and carbon dioxide from atmospheric air | Emerging Cross-Sectional Technologies | 156 | Expired |
| US4770676A | Recovery of methane from land fill gas | Emerging Cross-Sectional Technologies | 134 | Expired |
| US4472178A | Adsorptive process for the removal of carbon dioxide from a gas | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5354346A | Purge effluent repressurized adsorption process | Performing Operations; Transporting | 80 | Expired |
| US5486227A | Integrated process for purifying and liquefying a feed gas mixture with respect to its less strongly adsorbed component of lower volatility | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4477265A | Argon purification | Mechanical Engineering; Lighting; Heating | 61 | Expired |
| US5328503A | Adsorption process with mixed repressurization and purge/equalization | Chemistry; Metallurgy | 56 | Expired |
| US5411578A | Vacuum swing adsorption process with mixed repressurization and provide product depressurization | Performing Operations; Transporting | 55 | Expired |
| US4892565A | Adsorptive separation utilizing multiple adsorption beds | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4913709A | Adsorption process for recovering two high purity gas products from multicomponent gas mixtures | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4915711A | Adsorptive process for producing two gas streams from a gas mixture | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5429666A | VSA adsorption process with continuous operation | Performing Operations; Transporting | 45 | Expired |
| US4813977A | Adsorptive nitrogen generation utilizing multiple adsorption beds | Performing Operations; Transporting | 42 | Expired |
| US4914218A | Adsorptive process for separating multicomponent gas mixtures | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5248322A | Depressurization effluent repressurized adsorption process | Performing Operations; Transporting | 39 | Expired |
| US5026406A | Adsorptive process for producing two gas streams from a gas mixture | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5980857A | Production of carbon monoxide from syngas | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5073356A | Integrated processes for the production of carbon monoxide | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5258060A | Adsorptive separation using diluted adsorptive phase | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5330561A | Extended vacuum swing adsorption process | Chemistry; Metallurgy | 34 | Expired |
| US5540758A | VSA adsorption process with feed/vacuum advance and provide purge | Performing Operations; Transporting | 34 | Expired |
| US5980611A | Air purification process | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5294247A | Adsorption process to recover hydrogen from low pressure feeds | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5266102A | O.sub.2 VSA process with low O.sub.2 capacity adsorbents | Performing Operations; Transporting | 29 | Expired |
| US7871457B2 | Carbon dioxide production method | Emerging Cross-Sectional Technologies | 28 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.