Mechanical Technology Incorporated

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5760391 Passive optical wavelength analyzer with a passive nonuniform optical gratingExpiredJul 17, 96Jun 02, 98[H01J]
5664945 Pressurized wick burnerExpiredApr 05, 96Sep 09, 97[F23D]
5645407 Balanced single stage linear diaphragm compressorExpiredMay 25, 95Jul 08, 97[F04B]
5435141 Application of organic gas sensors in the detection and separation of recovered volatile organic compounds (VOCs)ExpiredAug 04, 94Jul 25, 95[F25J]
5436988 Optical slip ringExpiredJan 13, 94Jul 25, 95[G02B]
5273106 Self-defrosting recuperative air-to-air heat exchangerExpiredJul 21, 92Dec 28, 93[F28F]
5256637 Superconducting coil bearings for rotor loadExpiredJul 22, 91Oct 26, 93[H02K, H01B]
5228293 Low temperature solar-to-electric power conversion systemExpiredJul 06, 92Jul 20, 93[F03G]
5205384 Powder-lubricated damper with wavy damper padsExpiredOct 22, 90Apr 27, 93[F16C]
5202824 Rotating force generator for magnetic bearingsExpiredAug 06, 92Apr 13, 93[H02K, G05B]
5193120 Machine vision three dimensional profiling systemExpiredFeb 27, 91Mar 09, 93[G06K]
5175457 Linear motor or alternator plunger configuration using variable magnetic properties for center row and outer rows of magnetsExpiredOct 28, 91Dec 29, 92[H02K]
5171129 Hydraulically driven reciprocating compressor having a free-floating diaphragmExpiredJan 07, 91Dec 15, 92[F04B]
5140905 Stabilizing gas bearing in free piston machinesExpiredNov 30, 90Aug 25, 92[F15B]
5109673 Relative gas spring configuration free-piston stirling cycle systemExpiredMay 01, 91May 05, 92[F02G]
5090894 Enhanced air/fuel mixing for automotive stirling engine turbulator-type combustorsExpiredJan 29, 91Feb 25, 92[F23M]
5085185 Powder-lubricant piston ring for diesel enginesExpiredSep 14, 90Feb 04, 92[F02F]
5074755 Hydraulically driven reciprocating compressor having a free-floating diaphragmExpiredNov 14, 89Dec 24, 91[F04B]
5035117 Thermal engine driven heat pump for recovery of volatile organic compoundsExpiredAug 01, 90Jul 30, 91[F25B, B01D]
5022229 Stirling free piston cryocoolersExpiredFeb 23, 90Jun 11, 91[F25B]

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