Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2727759A | Valved couplers for fluid-conducting conduits | Hughes Tool Co | Expired / Lapsed | 1951-10-27 | 1955-12-20 | 1971-10-27 | 0.0 yrs | 0 | |
| US2727761A | Couplers for fluid-conducting conduits | Hughes Tool Co | Expired / Lapsed | 1951-10-27 | 1955-12-20 | 1971-10-27 | 0.0 yrs | 0 | |
| US2674733A | Electronic sorting system | Hughes Tool Co | Expired / Lapsed | 1952-12-02 | 1954-04-06 | 1972-12-02 | 0.0 yrs | 0 | |
| US2665411A | Double interpolation method and apparatus for measuring time intervals | Hughes Tool Co | Expired / Lapsed | 1951-03-15 | 1954-01-05 | 1971-03-15 | 0.0 yrs | 0 | |
| US2293997A | Method of making tool joints | Hughes Tool Co | Expired / Lapsed | 1939-08-01 | 1942-08-25 | 1959-08-01 | 0.0 yrs | 0 |