Junfeng Xu
42Patents
3h-index
52Co-inventors
62Inventor score
Filing activity: Feb 14, 2007 → Apr 22, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7874512B2 | System and method for a flyable and roadable vehicle | Performing Operations; Transporting | 25 | Active |
| US10868226B2 | LED light bulb having filament with conductor pratly overlapping with LED chip | Electricity | 15 | Active |
| US10033313B2 | Control method for restarting permanent magnet synchronous motor with speed, device and system thereof | Electricity | 4 | Active |
| US10899181B2 | Tire puncture detection and alert | Performing Operations; Transporting | 3 | Active |
| US10894247B2 | Fluidized-bed catalyst suitable for the production of halogenated aromatic nitriles, its preparation and application thereof | Performing Operations; Transporting | 3 | Active |
| US9837946B2 | Method and device for acquiring rotor position based on permanent magnet synchronous drive system | Electricity | 3 | Active |
| US8712338B2 | Method and system for implementing power detection | Electricity | 2 | Active |
| US10684492B2 | System for imaging in the air | Physics | 1 | Active |
| US11630250B2 | System for use in imaging in air | Physics | 1 | Active |
| US10717421B2 | Braking force distribution method and system of multiple train units | Performing Operations; Transporting | 1 | Active |
| US10205373B2 | Self-alignment protection device for permanent-magnet coupling | Electricity | 1 | Active |
| US10790420B2 | Light bulb with a symmetrical LED filament | Electricity | 1 | Active |
| US12313227B2 | LED filament and LED light bulb | Electricity | 0 | Active |
| US10868227B2 | Large angle illuminated LED filament light bulb | Electricity | 0 | Active |
| US11860360B2 | Display apparatus, head-up display and motor vehicle | Physics | 0 | Active |
| US10804446B2 | LED light bulb with spectral distribution of natural light | Electricity | 0 | Active |
| US10797208B2 | LED light bulb with conductive sections and exposed wires | Electricity | 0 | Active |
| US10804445B2 | Uniformly illuminated LED filament light bulb | Electricity | 0 | Active |
| US11397323B2 | Displaying system, method, and vehicle | Physics | 0 | Active |
| US10661666B2 | Traction distribution method and system of power-distributed train | Emerging Cross-Sectional Technologies | 0 | Active |
| US11866957B2 | Lock housing device and key structure | Physics | 0 | Active |
| US11161253B2 | Retrieving magnetically attracted objects from substantially inaccessible cavities | Electricity | 0 | Active |
| US11796806B2 | Head-up display device and motor vehicle | Physics | 0 | Active |
| US10790419B2 | LED filament and LED light bulb | Electricity | 0 | Active |
| US10374545B2 | Rotor temperature monitoring method and system for permanent magnet synchronous motor | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.