Welding Research Inc
Welding ReActive Patents
0
Total Holdings
10
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3262006A | Welding control system | Expired / Lapsed | 1963-12-27 | 1966-07-19 | 2 | Details |
| US3112391A | Zeroing system for electron gun | Expired / Lapsed | 1961-10-27 | 1963-11-26 | 2 | Details |
| US3098187A | Control system | Expired / Lapsed | 1959-12-24 | 1963-07-16 | 2 | Details |
| US2859399A | Control system | Expired / Lapsed | 1955-09-30 | 1958-11-04 | 0 | Details |
| US2803407A | Counting system including step-by-step devices providing pr… | Expired / Lapsed | 1952-07-30 | 1957-08-20 | 0 | Details |
| US2652197A | Predetermining system, including devices providing continuo… | Expired / Lapsed | 1949-01-28 | 1953-09-15 | 0 | Details |
| US2600519A | Sequence control circuit and timer | Expired / Lapsed | 1948-06-22 | 1952-06-17 | 0 | Details |
| US2474867A | Protective system for three-phase single-phase machines | Expired / Lapsed | 1945-12-20 | 1949-07-05 | 0 | Details |
| US2431083A | Electric valve converting system | Expired / Lapsed | 1944-09-01 | 1947-11-18 | 0 | Details |
| US2409271A | Process for cleaning aluminum | Expired / Lapsed | 1943-03-22 | 1946-10-15 | 0 | Details |