Patent Explorer
Browse, filter, and analyze 21 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| GB926613A | Improvements in and relating to composite vertical take-off aircraft | English Electric Co Ltd | Expired / Lapsed | 1958-04-14 | — | 1978-04-14 | 0.0 yrs | 0 | |
| GB382209A | Improvements relating to single phase induction motors | English Electric Co Ltd | Expired / Lapsed | 1932-04-06 | — | 1952-04-06 | 0.0 yrs | 0 | |
| GB1114413A | Improvements in or relating to dynamo-electric machine stators | English Electric Co Ltd | Expired / Lapsed | 1963-11-28 | — | 1983-11-28 | 0.0 yrs | 0 | |
| US3445813A | Information transmission system | English Electric Co Ltd | Expired / Lapsed | 1965-06-02 | 1969-05-20 | 1985-06-02 | 0.0 yrs | 0 | |
| US3364358A | Measuring apparatus for measuring a linear dimension of a body | English Electric Co Ltd | Expired / Lapsed | — | 1968-01-16 | 1985-01-16 | 0.0 yrs | 0 | |
| US3302093A | Electric frequency changers | English Electric Co Ltd | Expired / Lapsed | 1963-09-16 | 1967-01-31 | 1983-09-16 | 0.0 yrs | 2 | |
| US3252145A | Electric data storage apparatus | English Electric Co Ltd | Expired / Lapsed | 1961-06-29 | 1966-05-17 | 1981-06-29 | 0.0 yrs | 2 | |
| US3250978A | Controlled switching circuit for d. c. supply for inductive or regenerative loads | English Electric Co Ltd | Expired / Lapsed | 1963-06-24 | 1966-05-10 | 1983-06-24 | 0.0 yrs | 2 | |
| US3250975A | Electric motor speed and braking control systems | English Electric Co Ltd | Expired / Lapsed | 1963-01-10 | 1966-05-10 | 1983-01-10 | 0.0 yrs | 2 | |
| US3239193A | Fluid machines | English Electric Co Ltd | Expired / Lapsed | 1963-06-20 | 1966-03-08 | 1983-06-20 | 0.0 yrs | 2 | |
| US3236610A | Bonded metal-ceramic elements | English Electric Co Ltd | Expired / Lapsed | 1962-03-05 | 1966-02-22 | 1982-03-05 | 0.0 yrs | 2 | |
| US3220815A | Process of bonding glass or ceramic to metal | English Electric Co Ltd | Expired / Lapsed | 1961-04-24 | 1965-11-30 | 1981-04-24 | 0.0 yrs | 1 | |
| US3117253A | Temperature compensation of transistor amplifiers | English Electric Co Ltd | Expired / Lapsed | 1960-06-03 | 1964-01-07 | 1980-06-03 | 0.0 yrs | 2 | |
| US3090901A | Motor speed control systems | English Electric Co Ltd | Expired / Lapsed | 1960-06-07 | 1963-05-21 | 1980-06-07 | 0.0 yrs | 2 | |
| US2932467A | Ballistic missiles | English Electric Co Ltd | Expired / Lapsed | 1955-08-11 | 1960-04-12 | 1975-08-11 | 0.0 yrs | 0 | |
| US2924753A | Electrical protective relay systems | English Electric Co Ltd | Expired / Lapsed | 1956-05-14 | 1960-02-09 | 1976-05-14 | 0.0 yrs | 0 | |
| FR1101994A | Improvements to liquid fuel heaters | English Electric Co Ltd | Expired / Lapsed | 1954-06-09 | 1955-10-12 | 1974-06-09 | 0.0 yrs | 0 | |
| US2627012A | Heating of surfaces by laminated foil resistance elements with timed connecting means | English Electric Co Ltd | Expired / Lapsed | 1950-08-05 | 1953-01-27 | 1970-08-05 | 0.0 yrs | 0 | |
| US2442274A | Transformer | English Electric Co Ltd | Expired / Lapsed | 1944-06-16 | 1948-05-25 | 1964-06-16 | 0.0 yrs | 0 | |
| US2175820A | Means for supplying current to direct current electric motors | English Electric Co Ltd | Expired / Lapsed | 1937-08-06 | 1939-10-10 | 1957-08-06 | 0.0 yrs | 0 |
Showing 1 to 20 of 21 patents
Page 1 of 2
Next →