Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3660607A | Apparatus and method for detecting phase deviation of a pilot subcarrier in stereophonic multiplex broadcasting | Tesla AS | Expired / Lapsed | 1970-04-01 | 1972-05-02 | 1990-04-01 | 0.0 yrs | 9 | |
| US3345874A | Circuit arrangement for accurate measurement of temperatures or small temperature changes | Tesla AS | Expired / Lapsed | 1965-01-13 | 1967-10-10 | 1985-01-13 | 0.0 yrs | 2 | |
| US2929545A | Oil diffusion high-vacuum pump | Tesla AS | Expired / Lapsed | 1957-12-10 | 1960-03-22 | 1977-12-10 | 0.0 yrs | 0 | |
| US2588287A | Impulse metering device | Tesla AS | Expired / Lapsed | 1950-06-10 | 1952-03-04 | 1970-06-10 | 0.0 yrs | 0 | |
| US2523240A | Balanced feedback for symmetric cathode followers | Tesla AS | Expired / Lapsed | 1948-10-27 | 1950-09-19 | 1968-10-27 | 0.0 yrs | 0 |