SPD ELECTRICAL SYSTEMS
Patent Applications and Registrations
Patent applications and USPTO patent grants for SPD ELECTRICAL SYSTEMS.The latest application filed is for "graded resistance solid state current control circuit".
- SPD ELECTRICAL SYSTEMS - Philadelphia PA
- SPD Electrical Systems - Kettering OH
- SPD ELECTRICAL SYSTEMS - Media PA
| Patent | Date |
|---|---|
| Graded Resistance Solid State Current Control Circuit App 20120243137 - Lawler; Robert ; et al. | 2012-09-27 |
| Power node switching center with active feedback control of power switches Grant 8,223,469 - Barber July 17, 2 | 2012-07-17 |
| Power Node Switching Center With Active Feedback Control Of Power Switches App 20110007432 - Barber; John P. | 2011-01-13 |
| Power node switching center Grant 7,667,938 - Ykema , et al. February 23, 2 | 2010-02-23 |
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