Patent Explorer
Browse, filter, and analyze 15 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3905105A | Saws and blades therefor | National Research Development Corp UK | Expired / Lapsed | 1974-01-07 | 1975-09-16 | 1994-01-07 | 0.0 yrs | 11 | |
| US3807394A | Fracture fixing device | National Research Development Corp UK | Expired / Lapsed | 1972-08-03 | 1974-04-30 | 1992-08-03 | 0.0 yrs | 13 | |
| US3398481A | Method and apparatus for controlling carbon dioxide concentrations in greenhouses | National Research Development Corp UK | Expired / Lapsed | 1966-05-20 | 1968-08-27 | 1986-05-20 | 0.0 yrs | 0 | |
| US3099833A | Method of radio scanning | National Research Development Corp UK | Expired / Lapsed | 1959-03-17 | 1963-07-30 | 1979-03-17 | 0.0 yrs | 2 | |
| US3004077A | Manufacture of fluorinated aromatic compounds | National Research Development Corp UK | Expired / Lapsed | 1959-09-04 | 1961-10-10 | 1979-09-04 | 0.0 yrs | 2 | |
| US2931958A | Semi-conductor devices | National Research Development Corp UK | Expired / Lapsed | 1955-04-19 | 1960-04-05 | 1975-04-19 | 0.0 yrs | 0 | |
| US2846142A | Electronic digital computing engines | National Research Development Corp UK | Expired / Lapsed | 1954-08-25 | 1958-08-05 | 1974-08-25 | 0.0 yrs | 0 | |
| US2800278A | Number signal analysing means for electronic digital computing machines | National Research Development Corp UK | Expired / Lapsed | 1951-05-17 | 1957-07-23 | 1971-05-17 | 0.0 yrs | 0 | |
| US2800277A | Controlling arrangements for electronic digital computing machines | National Research Development Corp UK | Expired / Lapsed | 1951-05-17 | 1957-07-23 | 1971-05-17 | 0.0 yrs | 0 | |
| US2799449A | Data storage transfer means for a digital computer | National Research Development Corp UK | Expired / Lapsed | 1951-04-23 | 1957-07-16 | 1971-04-23 | 0.0 yrs | 0 | |
| US2772050A | Electronic digital computing machines | National Research Development Corp UK | Expired / Lapsed | 1950-06-21 | 1956-11-27 | 1970-06-21 | 0.0 yrs | 0 | |
| US2757864A | Information translating apparatus | National Research Development Corp UK | Expired / Lapsed | 1951-08-28 | 1956-08-07 | 1971-08-28 | 0.0 yrs | 0 | |
| US2750499A | Circuits for ultrasonic delay lines | National Research Development Corp UK | Expired / Lapsed | 1951-01-08 | 1956-06-12 | 1971-01-08 | 0.0 yrs | 0 | |
| US2721732A | Apparatus for mixing liquids and gases | National Research Development Corp UK | Expired / Lapsed | 1952-12-23 | 1955-10-25 | 1972-12-23 | 0.0 yrs | 2 | |
| US2686632A | Digital computer | National Research Development Corp UK | Expired / Lapsed | 1950-12-26 | 1954-08-17 | 1970-12-26 | 0.0 yrs | 0 |