ABB STROMBERG DRIVES OY
Patent Owner
Stats
- 4 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 28, 1996 most recent publication
Details
- 4 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 91 Total Citation Count
- Jun 12, 1979 Earliest Filing
- 9 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5371458 Method for determining the stator flux of an asynchronous machineExpiredOct 20, 92Dec 06, 94[G01R]
5309086 Current measuring transducer operating on the compensation principleExpiredMar 25, 93May 03, 94[G01R]
5198742 Method of preventing the stalling of an asynchronous machineExpiredNov 16, 90Mar 30, 93[H02P]
5162727 Method and apparatus of determining the stator flux estimate of an electric machineExpiredDec 07, 90Nov 10, 92[G01L]
4920306 Method for controlling the torque of a synchronous machine supplied by a frequency converterExpiredAug 03, 88Apr 24, 90[H02P]
4566051 Inverter protected in respect of the rates of increase of current and voltageExpiredApr 17, 84Jan 21, 86[H02H]
4283840 Method for manufacturing a support construction for the winding in an electrical machineExpiredJun 12, 79Aug 18, 81[H02K]
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