Sundstrand Corp
SundstrandActive Patents
0
Total Holdings
25
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US5061151A | Centrifugal pump system with liquid ring priming pump | Expired / Lapsed | 1990-02-22 | 1991-10-29 | 21 | Details |
| US4949021A | Variable speed constant frequency start system with selecta… | Expired / Lapsed | 1988-11-14 | 1990-08-14 | 20 | Details |
| US4880055A | Impingement plate type heat exchanger | Expired / Lapsed | 1988-12-07 | 1989-11-14 | 25 | Details |
| US4866450A | Advanced instrument landing system | Expired / Lapsed | 1988-10-14 | 1989-09-12 | 28 | Details |
| US4825166A | Bobbin for a magnetic sensor | Expired / Lapsed | 1987-01-27 | 1989-04-25 | 21 | Details |
| US4714405A | Centrifugal pump | Expired / Lapsed | 1986-09-11 | 1987-12-22 | 4 | Details |
| US4633382A | Inverter control system | Expired / Lapsed | 1985-02-26 | 1986-12-30 | 4 | Details |
| US4618792A | Dynamoelectric machine with a laminated pole permanent magn… | Expired / Lapsed | 1984-09-26 | 1986-10-21 | 9 | Details |
| US4546293A | Motor control for a brushless DC motor | Expired / Lapsed | 1982-08-24 | 1985-10-08 | 5 | Details |
| US4488198A | Protective circuit for clutchless parallel generating system | Expired / Lapsed | 1982-05-17 | 1984-12-11 | 6 | Details |
| US4222712A | Multiple displacement pump system with bypass controlled by… | Expired / Lapsed | 1978-02-15 | 1980-09-16 | 9 | Details |
| US3967799A | Head up display and pitch generator | Expired / Lapsed | 1974-11-25 | 1976-07-06 | 18 | Details |
| US3947808A | Excessive descent rate warning system for aircraft | Expired / Lapsed | 1975-01-13 | 1976-03-30 | 28 | Details |
| US3878535A | Phase locked loop method of synchro-to-digital conversion | Expired / Lapsed | 1972-06-08 | 1975-04-15 | 8 | Details |
| US3668653A | Control system | Expired / Lapsed | 1968-10-22 | 1972-06-06 | 115 | Details |
| US3639073A | Centrifugal pump | Expired / Lapsed | 1970-04-23 | 1972-02-01 | 17 | Details |
| US3416052A | Pulse width modulated position control circuit | Expired / Lapsed | 1965-06-21 | 1968-12-10 | 0 | Details |
| US3411297A | Hydrostatic transmission | Expired / Lapsed | 1967-03-20 | 1968-11-19 | 0 | Details |
| US3333468A | Mass flow measuring system | Expired / Lapsed | 1964-11-30 | 1967-08-01 | 2 | Details |
| US3292723A | Hydrostatic transmission | Expired / Lapsed | 1965-03-04 | 1966-12-20 | 2 | Details |
| US3266487A | Heart pump augmentation system and apparatus | Expired / Lapsed | 1963-06-04 | 1966-08-16 | 2 | Details |
| US3181441A | Control apparatus | Expired / Lapsed | 1961-10-12 | 1965-05-04 | 1 | Details |
| US2942421A | Hydraulic transmission | Expired / Lapsed | 1957-07-31 | 1960-06-28 | 0 | Details |
| US2941365A | Hydraulic transmission | Expired / Lapsed | 1957-07-23 | 1960-06-21 | 0 | Details |
| US2915015A | Air purging apparatus for pumps | Expired / Lapsed | 1955-05-16 | 1959-12-01 | 0 | Details |