Ning Lei
21Patents
9h-index
19Co-inventors
68Inventor score
Filing activity: Dec 15, 1998 → Jan 7, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6772742B2 | Method and apparatus for flexibly regulating internal combustion engine valve flow | Emerging Cross-Sectional Technologies | 38 | Expired |
| US7287378B2 | Divided exhaust manifold system and method | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6085726A | Fuel injector | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US8596252B2 | Emission control system for an engine having a two-stage turbocharger | Emerging Cross-Sectional Technologies | 15 | Active |
| US6474304B1 | Double-acting two-stage hydraulic control device | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6467457B1 | Injector actuating fluid check and methods | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6684853B1 | Fuel injector with direct needle valve control | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6868831B2 | Fuel injector with controlled high pressure fuel passage | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6745958B2 | Dual control valve | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6905002B2 | Acoustic wave attenuator for a rail | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6845926B2 | Fuel injector with dual control valve | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6604507B1 | Fuel injector | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6742504B2 | Pressure wave attenuator for a rail | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6948585B2 | Acoustic wave attenuator for a rail | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6978747B2 | Hydraulic actuator cartridge for a valve | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6257203A | Injector with variable needle valve opening pressure | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6408829B1 | Fuel pressure delay cylinder | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7004406B2 | Enhanced needle motion controller | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10274215B2 | Hybrid refrigeration air-conditioning unit | Emerging Cross-Sectional Technologies | 0 | Active |
| US6286483A | Fuel injector with actuation pressure delay device | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US10762159B2 | Method and system for increasing page loading rate | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.