US Philips Corp
US PhilipsActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3988606A | Digital filter device for processing binary-coded signal sa… | Expired / Lapsed | 1975-05-30 | 1976-10-26 | 11 | Details |
| US3973199A | Prediction differential pulse code modulation system with a… | Expired / Lapsed | 1974-08-29 | 1976-08-03 | 13 | Details |
| US3632883A | Telecommunication exchange with time division multiplex | Expired / Lapsed | 1969-07-02 | 1972-01-04 | 4 | Details |
| US3307171A | Apparatus for energizing an electrical load device | Expired / Lapsed | 1963-06-20 | 1967-02-28 | 2 | Details |
| US3228230A | Integrator with automatic compensation of the variation of … | Expired / Lapsed | 1962-01-04 | 1966-01-11 | 2 | Details |
| US3223907A | Apparatus for the production of ultrasonic oscillations | Expired / Lapsed | 1962-10-01 | 1965-12-14 | 1 | Details |
| US3187164A | Device for the protection of electrical apparatus | Expired / Lapsed | 1962-12-05 | 1965-06-01 | 1 | Details |
| US2951995A | Circuit for controlling the resonance frequency of an oscil… | Expired / Lapsed | 1957-09-16 | 1960-09-06 | 0 | Details |