Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3693054A | Semiconductor having a transistor, a thyristor and a diode in one body | Siemens Mobility Ltd | Expired / Lapsed | 1971-09-15 | 1972-09-19 | 1991-09-15 | 0.0 yrs | 7 | |
| US3476989A | Controlled rectifier semiconductor device | Siemens Mobility Ltd | Expired / Lapsed | 1967-03-29 | 1969-11-04 | 1987-03-29 | 0.0 yrs | 0 | |
| US3122723A | Remote control systems | Siemens Mobility Ltd | Expired / Lapsed | 1959-05-25 | 1964-02-25 | 1979-05-25 | 0.0 yrs | 2 | |
| US2753497A | Crystal contact rectifiers | Siemens Mobility Ltd | Expired / Lapsed | 1952-06-30 | 1956-07-03 | 1972-06-30 | 0.0 yrs | 2 |