PERFORMANCE CONTROLS, INC.
20Patents
3Active
20Granted
35Portfolio score
Filing activity: Jan 26, 1984 → Mar 14, 2013 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5379209A | Electronic switching circuit | Electricity | 223 | Expired |
| US5493487A | Electronic switching circuit | Electricity | 45 | Expired |
| US4792737A | Circuit for controlling the motion of a moving object | Physics | 26 | Expired |
| US4697125A | Method and apparatus for determining shaft position and for providing commutation signals | Electricity | 24 | Expired |
| US4562386A | Current sense demodulator | Electricity | 22 | Expired |
| US5081409A | Pulse-width modulated circuit for driving a load | Electricity | 20 | Expired |
| US5070292A | Pulse-width modulated circuit for driving a load | Electricity | 19 | Expired |
| US5365422A | Pulse-width modulated circuit for applying current to a load | Electricity | 10 | Expired |
| US5723913A | High-voltage electronic switching circuit | Electricity | 9 | Expired |
| US5646837A | Pulse-width modulated circuit with improved linearity | Electricity | 8 | Expired |
| US5629616A | Circuit for measuring current in class-d amplifiers | Physics | 8 | Expired |
| US5497062A | Digital pulse-width modulated system for providing current to a load | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5150286A | Apparatus and method for protecting electronic circuitry from damage | Electricity | 6 | Expired |
| US5519601A | Pulse-width modulated circuit for applying current to a load | Electricity | 5 | Expired |
| US4918584A | Self-adjusting servo device and method | Physics | 5 | Expired |
| US5736829A | High-speed constant-horsepower motor | Electricity | 4 | Expired |
| US5575932A | Method of making densely-packed electrical conductors | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7535303B1 | Active LC filter damping circuit with galvanic isolation | Electricity | 0 | Active |
| US9444320B1 | Power controller having active voltage balancing of a power supply | Electricity | 0 | Active |
| US7965795B2 | Prevention of integrator wind-up in PI type controllers | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.