Ravi Prasad
109Patents
36h-index
96Co-inventors
93Inventor score
Filing activity: Mar 26, 1979 → Aug 30, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5649552A | Process and apparatus for impregnation and expansion of tobacco | Human Necessities | 160 | Expired |
| US4931070A | Process and system for the production of dry, high purity nitrogen | Chemistry; Metallurgy | 99 | Expired |
| US4881953A | Prevention of membrane degradation | Performing Operations; Transporting | 88 | Expired |
| US5018540A | Process for removal of basic materials | Chemistry; Metallurgy | 88 | Expired |
| US6139810A | Tube and shell reactor with oxygen selective ion transport ceramic reaction tubes | Emerging Cross-Sectional Technologies | 86 | Expired |
| US5820655A | Solid Electrolyte ionic conductor reactor design | Chemistry; Metallurgy | 85 | Expired |
| US5820654A | Integrated solid electrolyte ionic conductor separator-cooler | Chemistry; Metallurgy | 79 | Expired |
| US6638575B1 | Plasma sprayed oxygen transport membrane coatings | Chemistry; Metallurgy | 77 | Expired |
| US5497792A | Process and apparatus for the semicontinuous extraction of nicotine from tobacco | Performing Operations; Transporting | 72 | Expired |
| US6153163A | Ceramic membrane reformer | Chemistry; Metallurgy | 72 | Expired |
| US6296686A | Ceramic membrane for endothermic reactions | Emerging Cross-Sectional Technologies | 68 | Expired |
| US6402988B1 | Process for producing a syngas | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6010614A | Temperature control in a ceramic membrane reactor | Chemistry; Metallurgy | 63 | Expired |
| US5352361A | Spiral-wound hollow fiber membrane fabric cartridges and modules having flow-directing baffles | Performing Operations; Transporting | 58 | Expired |
| US5102432A | Three-stage membrane gas separation process and system | Chemistry; Metallurgy | 56 | Expired |
| US5547494A | Staged electrolyte membrane | Chemistry; Metallurgy | 56 | Expired |
| US6695983B2 | Syngas production method utilizing an oxygen transport membrane | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5378263A | High purity membrane nitrogen | Performing Operations; Transporting | 53 | Expired |
| US6924054B2 | Fuel supply for a fuel cell | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5837125A | Reactive purge for solid electrolyte membrane gas separation | Performing Operations; Transporting | 52 | Expired |
| US5733435A | Pressure driven solid electrolyte membrane gas separation method | Performing Operations; Transporting | 51 | Expired |
| US5284584A | Hollow fiber membrane fabric - containing cartridges and modules having solvent-resistant thermoplastic tube sheets, and methods for making the same | Performing Operations; Transporting | 51 | Expired |
| US4934148A | Dry, high purity nitrogen production process and system | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5084073A | Membrane drying process and system | Performing Operations; Transporting | 45 | Expired |
| US5964922A | Solid electrolyte ionic conductor with adjustable steam-to-oxygen production | Emerging Cross-Sectional Technologies | 43 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.