Inventor · Perry Hall, MD, US

Ren Wang

23Patents
9h-index
56Co-inventors
78Inventor score

Filing activity: Jun 14, 2000 → Nov 27, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7821217B2 Electronically commutated motor and control system employing phase angle control of phase current Electricity 64 Active
US8994336B2 Portable alternating current inverter having reduced impedance losses Electricity 42 Active
US7038343B2 Field assembly for a motor and method of making same Emerging Cross-Sectional Technologies 40 Expired
US8460153B2 Hybrid impact tool with two-speed transmission Performing Operations; Transporting 27 Active
US7893583B2 Power tools with motor having a multi-piece stator Electricity 20 Active
US9166422B2 Battery based portable power supply Electricity 20 Active
USRE46827E1 Hybrid impact tool with two-speed transmission General 14 Active
US9344008B2 Portable alternating current inverter having reduced impedance losses Electricity 14 Active
US10020430B2 Phosphor with preferred orientation, fabricating method thereof, and light-emitting element package structure employing the same Electricity 12 Active
US6566782B1 Motor armature having distributed windings for reducing arcing Emerging Cross-Sectional Technologies 9 Expired
US8207647B2 Power tools with motor having a multi-piece stator Electricity 8 Active
US8558420B2 Power tool with motor having a multi-piece stator Electricity 7 Active
US9991706B2 Portable alternating current inverter having reduced imipedance losses Electricity 6 Active
US6930429B2 Motor armature having distributed windings for reducing arcing Emerging Cross-Sectional Technologies 6 Expired
US7155811B2 Method for manufacturing an armature of an electric motor Emerging Cross-Sectional Technologies 4 Expired
US7000307B2 Method for reducing arcing for motor armature with distributed windings Emerging Cross-Sectional Technologies 4 Expired
US7051420B2 Method for manufacturing an armature of an electric motor Emerging Cross-Sectional Technologies 3 Expired
US7274126B2 Motor armature having distributed windings for reducing arcing Emerging Cross-Sectional Technologies 3 Expired
US10023794B2 Fluoride phosphor including sheet-like crystal and manufacturing method and application thereof Electricity 1 Active
US11394742B2 Detecting trojan neural networks Electricity 0 Active
US12308147B2 Thermistor paste and manufacturing method thereof Electricity 0 Active
US10886795B2 Electric motor Electricity 0 Active
US11935675B2 Anti-surge resistor and fabrication method thereof Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.