Assignee
ABB STROEMBERG DRIVES OY
FI·10 granted patents·139 citations·filing 1988–1993
Top patents by PatentIndex Score
10 records- 0173US5301085AControl circuit for a semiconductor switchABB STROEMBERG DRIVES OY·Filed 1992·Granted Apr 5, 1994·27 cites·2 claims
- 0258US5491340AMethod and apparatus for determination of refiner mechanical pulp propertiesABB STROEMBERG DRIVES OY·Filed 1993·Granted Feb 13, 1996·22 cites·3 claims
- 0355US4918367AMethod for controlling the torque of an ac motorABB STROEMBERG DRIVES OY·Filed 1989·Granted Apr 17, 1990·16 cites·7 claims
- 0449US5371458AMethod for determining the stator flux of an asynchronous machineABB STROEMBERG DRIVES OY·Filed 1992·Granted Dec 6, 1994·13 cites·5 claims
- 0543US4920306AMethod for controlling the torque of a synchronous machine supplied by a frequency converterABB STROEMBERG DRIVES OY·Filed 1988·Granted Apr 24, 1990·15 cites·7 claims
- 0641US5521483AMethod of determining a residual flux of an inverter-supplied squirrel cage/induction machineABB STROEMBERG DRIVES OY·Filed 1993·Granted May 28, 1996·11 cites·8 claims
- 0739US5162727AMethod and apparatus of determining the stator flux estimate of an electric machineABB STROEMBERG DRIVES OY·Filed 1990·Granted Nov 10, 1992·14 cites·4 claims
- 0834US5309086ACurrent measuring transducer operating on the compensation principleABB STROEMBERG DRIVES OY·Filed 1993·Granted May 3, 1994·11 cites·1 claims
- 0929US5198742AMethod of preventing the stalling of an asynchronous machineABB STROEMBERG DRIVES OY·Filed 1990·Granted Mar 30, 1993·1 cites·16 claims
- 1023US5149997AFan for an electrically operated machineABB STROEMBERG DRIVES OY·Filed 1990·Granted Sep 22, 1992·9 cites·3 claims
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