William Pickering
28Patents
15h-index
17Co-inventors
78Inventor score
Filing activity: Mar 10, 1978 → Oct 10, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6168567A | Hybrid sphygmomanometer | Human Necessities | 55 | Expired |
| US4521885A | Diagnostic display apparatus | Physics | 46 | Expired |
| US4514665A | Current limit control circuit | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4471273A | Dual-motor control apparatus | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4529919A | Plugging and plugging override control apparatus | Performing Operations; Transporting | 30 | Expired |
| US4897882A | Motor control apparatus and method | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4508999A | Short circuit protection apparatus | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4518902A | Plugging electrical braking control circuit | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4555651A | Motor speed control apparatus | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7473020B2 | Light emitting diode display system | Mechanical Engineering; Lighting; Heating | 25 | Active |
| US4772829A | Apparatus for interactively accelerating an electric drive vehicle | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4511947A | Coil and coil driver control apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4691149A | Apparatus and method for protecting a motor control circuit | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4557343A | Power steering control apparatus and method | Performing Operations; Transporting | 15 | Expired |
| US4879623A | Voltage transients | Electricity | 15 | Expired |
| US4751439A | Multiple chopper speed control system for compound motor | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4736310A | Page make-up system | Electricity | 12 | Expired |
| US5084658A | Motor speed control system for an electrically powered vehicle | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5142435A | Filter capacitor precharge apparatus | Electricity | 8 | Expired |
| US4567467A | Angular rotary position encoder | Electricity | 7 | Expired |
| US9961758B1 | Packaging a printed circuit board having a plurality of semiconductors in an inverter | Emerging Cross-Sectional Technologies | 7 | Active |
| US5177419A | Apparatus for controlling a load lifting element of a vehicle in response to the wearing of a motor brush | Physics | 6 | Expired |
| US4481554A | Voltage adaptive solenoid control apparatus | Electricity | 5 | Expired |
| US5239242A | Motor direction contactor switching control | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4370891A | Dual element-single oscillator-ratio type digital transducer | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.