David E. Howard
25Patents
8h-index
18Co-inventors
72Inventor score
Filing activity: Jun 3, 1991 → Oct 22, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6185574A | Multiple display file directory and file navigation system for a personal computer | Emerging Cross-Sectional Technologies | 262 | Expired |
| US6519612B1 | Internet storage manipulation and navigation system | Emerging Cross-Sectional Technologies | 122 | Expired |
| US6496837B1 | Multiple attribute file directory manipulation and navigation system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6013999A | Stepper motor control that adjusts to motor loading | Electricity | 22 | Expired |
| US6313624A | Position sensor with integrated signal-conditioning electronics on a printed wiring board | Physics | 17 | Expired |
| US10373050B2 | Fixed point neural network based on floating point neural network quantization | Physics | 16 | Active |
| US5173696A | Control circuitry using electronic emulation of a synchro signal for accurate control of position and rate of rotation for shafts | Electricity | 13 | Expired |
| US5644224A | Dual brushless resolver rate sensor | Physics | 9 | Expired |
| US5451945A | Multi-speed multi-phase resolver converter | Electricity | 8 | Expired |
| US7081730B1 | Motor controller system for large dynamic range of motor operation | Electricity | 5 | Expired |
| US7325749B1 | Distributed solid state programmable thermostat/power controller | Physics | 5 | Expired |
| US6084398A | Rate of rotation measurement using back-EMFS associated with windings of a brushless DC motor | Electricity | 4 | Expired |
| US6246228A | Non-contact linear actuator position sensor having a pid-compensating controller | Physics | 4 | Expired |
| US6144198A | System and method for determining rate of rotation using brushless DC motor | Electricity | 3 | Expired |
| US7925680B1 | System and method for processing data management files in a virtual storage environment | Physics | 3 | Expired |
| US6104328A | Resolver to 360.degree. linear analog converter and method | Physics | 3 | Expired |
| US7911174B1 | Position sensing for rotor in hybrid stepper motor | Electricity | 2 | Active |
| US6013996A | Precision stop control for motors | Physics | 2 | Expired |
| US9632491B1 | Reconfigurable drive current system | Electricity | 0 | Active |
| US9825641B1 | Reconfigurable sensor monitoring system | Electricity | 0 | Active |
| US7134885B1 | Miniature housing with standard addressable interface for smart sensors and drive electronics | Electricity | 0 | Expired |
| US7116098B1 | System providing limit switch function with simultaneous absolute position output | Physics | 0 | Expired |
| US8290435B1 | Short-range communication system | Electricity | 0 | Active |
| US8098060B1 | Systems, methods and apparatus for position sensor digital conditioning electronics | Physics | 0 | Active |
| US6138131A | Arc-tangent circuit for continuous linear output | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.