Robert A. Stein
48Patents
22h-index
33Co-inventors
85Inventor score
Filing activity: May 9, 1983 → Sep 5, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5365461A | Position sensing computer input device | Physics | 183 | Expired |
| US5457289A | Frontally shielded capacitive touch sensor system | Physics | 137 | Expired |
| US7287492B2 | System and method for engine fuel blend control | Emerging Cross-Sectional Technologies | 110 | Expired |
| US7278396B2 | Method for controlling injection timing of an internal combustion engine | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5957096A | Internal combustion engine with variable camshaft timing, charge motion control valve, and variable air/fuel ratio | Mechanical Engineering; Lighting; Heating | 69 | Expired |
| US7395786B2 | Warm up strategy for ethanol direct injection plus gasoline port fuel injection | Emerging Cross-Sectional Technologies | 67 | Expired |
| US7647916B2 | Engine with two port fuel injectors | Emerging Cross-Sectional Technologies | 67 | Active |
| US5161497A | Variable valve timing operated engine | Emerging Cross-Sectional Technologies | 60 | Expired |
| US7461628B2 | Multiple combustion mode engine using direct alcohol injection | Emerging Cross-Sectional Technologies | 57 | Active |
| US7581528B2 | Control strategy for engine employng multiple injection types | Emerging Cross-Sectional Technologies | 55 | Active |
| US5950582A | Internal combustion engine with variable camshaft timing and intake valve masking | Emerging Cross-Sectional Technologies | 55 | Expired |
| US8141356B2 | Ethanol separation using air from turbo compressor | Emerging Cross-Sectional Technologies | 47 | Active |
| US7426925B2 | Warm up strategy for ethanol direct injection plus gasoline port fuel injection | Emerging Cross-Sectional Technologies | 46 | Active |
| US5960755A | Internal combustion engine with variable camshaft timing and variable duration exhaust event | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US7730872B2 | Engine with water and/or ethanol direct injection plus gas port fuel injectors | Emerging Cross-Sectional Technologies | 40 | Active |
| US7721710B2 | Warm up strategy for ethanol direct injection plus gasoline port fuel injection | Emerging Cross-Sectional Technologies | 40 | Active |
| US6394051B1 | Spark ignition engine with negative valve-overlap | Emerging Cross-Sectional Technologies | 31 | Expired |
| US7720592B2 | Approach for enhancing emissions control device warmup in a direct injection engine system | Emerging Cross-Sectional Technologies | 26 | Active |
| US7302932B2 | Pre-ignition detection and mitigation | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7869930B2 | Approach for reducing overheating of direct injection fuel injectors | Emerging Cross-Sectional Technologies | 23 | Active |
| US7957888B2 | Approach for enhancing emissions control device warmup in a direct injection engine system | Emerging Cross-Sectional Technologies | 22 | Active |
| US7681554B2 | Approach for reducing injector fouling and thermal degradation for a multi-injector engine system | Emerging Cross-Sectional Technologies | 22 | Active |
| US6321731A | Engine control strategy using dual equal cam phasing combined with exhaust gas recirculation | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7597072B2 | System and method for operating a multiple fuel engine | Emerging Cross-Sectional Technologies | 21 | Active |
| US8245690B2 | Direct injection alcohol engine with boost and spark control | Emerging Cross-Sectional Technologies | 21 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.