DETROIT EDISON COMPANY, THE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0099,887 Method of undertaking and implementing a project using at least one concept, method or tool which integrates lean six sigma and sustainability conceptsAbandonedOct 12, 07Apr 16, 09[G06Q, G06F]
7261204 Electric meter toteExpiredAug 11, 04Aug 28, 07[B65D]
2006/0272,900 Lubricant change systemAbandonedJun 07, 05Dec 07, 06[F16N]
2006/0260,193 Device and method for reforming a voc gasAbandonedJun 20, 03Nov 23, 06[B01J]
6471432 Marker penExpiredJan 18, 02Oct 29, 02[A46B]
6181985 Rate-based load shed moduleExpiredApr 29, 98Jan 30, 01[G05D]
6052092 Wireless telecommunication antenna mountExpiredJan 12, 98Apr 18, 00[H01Q]
6021967 Sealing assembly for a coal pulverizerExpiredNov 26, 97Feb 08, 00[B02C]
5975141 On-line variable orificeExpiredMar 09, 98Nov 02, 99[F15D]
5581470 Apparatus for visually graphically displaying the operating point of a generator in reference to its capability curve including digital readouts of watts, vars and hydrogen pressureExpiredJul 05, 91Dec 03, 96[G01R]
5259445 Control for dual heating system including a heat pump and furnaceExpiredJul 13, 92Nov 09, 93[F25B]
5008560 Load totalizing blocked throwover controlExpiredFeb 23, 89Apr 16, 91[H02J]
4934949 Self-cleaning hot line clampExpiredSep 25, 89Jun 19, 90[H01R]
4817929 Cable clamp alignment fixtureExpiredDec 28, 87Apr 04, 89[B25B]
4686641 Static programmable powerline carrier channel test structure and methodExpiredMar 18, 85Aug 11, 87[H04M, G05B]
4532418 Microprocessor electric vehicle charging and parking meter system structure and methodExpiredDec 21, 84Jul 30, 85[B65G, G06F]
4473383 Precipitator with weighted release wireExpiredFeb 09, 83Sep 25, 84[B03C]
4374672 Method of and composition for producing a stabilized fill materialExpiredOct 19, 81Feb 22, 83[C04B]
4302335 Reconditioning of phosphate ester hydraulic control fluidsExpiredFeb 13, 80Nov 24, 81[B01D]

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