GEC ALSTHOM LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6107785 Polyphase static var compensator arrangement for supply voltage regulation by energy dissipationExpiredJul 28, 98Aug 22, 00[H02J]
5825189 Method of locating the position of a fault on a power transmissionExpiredAug 13, 96Oct 20, 98[G01R]
5790388 Antiseismic static electrical converter apparatusExpiredDec 04, 95Aug 04, 98[H02M]
5730425 Method and apparatus for paying out, securing and hauling in a flexible elongate tensile memberExpiredAug 01, 96Mar 24, 98[B66D]
5730845 Method and apparatus of producing an organo-nitrogen compoundExpiredMay 07, 96Mar 24, 98[C07C]
5608327 Methods and apparatus for identifying faulted phases on an electric power transmission lineExpiredApr 06, 95Mar 04, 97[G04R]
5575620 Turbine blade assemblyExpiredDec 29, 95Nov 19, 96[F01D]
5566443 Methods of making power distribution transformersExpiredOct 12, 94Oct 22, 96[H01F]
5455553 Distribution transformersExpiredOct 12, 94Oct 03, 95[H01F]
5387894 Distribution transformersExpiredJun 10, 92Feb 07, 95[H01F]
5195615 Mine shaft conveyance systemExpiredMar 05, 90Mar 23, 93[B66B]
5157288 Phase shifting circuitsExpiredMar 15, 91Oct 20, 92[H03L, C05F]
5126604 Linear motor conveyance systemExpiredNov 13, 90Jun 30, 92[H02K]
5093770 Electrical energy storage systemExpiredOct 25, 90Mar 03, 92[H02J, H01H]
5072403 Equipment for and methods of locating the position of a fault on a power transmission lineExpiredSep 06, 89Dec 10, 91[G06F, G01R]
5012184 Adjustment of disposition of rotation axis in moving coil measuring instruments to correct for their non-ideal operationExpiredFeb 21, 90Apr 30, 91[G01R]

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