Weir Group PLC
Weir GroupActive Patents
0
Total Holdings
8
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB556866A | Improvements in and relating to helicopters | Expired / Lapsed | 1942-04-22 | — | 0 | Details |
| US3379332A | Closure devices | Expired / Lapsed | 1965-05-04 | 1968-04-23 | 0 | Details |
| US2672820A | Centrifugal pump | Expired / Lapsed | 1952-04-22 | 1954-03-23 | 0 | Details |
| US2408851A | Pump | Expired / Lapsed | 1944-09-22 | 1946-10-08 | 0 | Details |
| US2163281A | Means for controlling feed water pumps | Expired / Lapsed | 1938-02-18 | 1939-06-20 | 0 | Details |
| US1795190A | Feed-water regulator for boilers | Expired / Lapsed | 1928-05-16 | 1931-03-03 | 0 | Details |
| US1129009A | Control device for rotary boiler feed-pumps. | Expired / Lapsed | 1914-09-14 | 1915-02-16 | 0 | Details |
| GB191219872A | Improvements in Rotary Apparatus for Exhausting or Compress… | Expired / Lapsed | 1912-08-31 | 1913-01-16 | 0 | Details |