ERGENICS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4884953 Solar powered pump with electrical generatorExpiredOct 31, 88Dec 05, 89[F04B]
4781246 Thermally reversible heat exchange unitExpiredMay 12, 82Nov 01, 88[F25B]
4687049 Thermally reversible heat exchange unit and method of using sameExpiredNov 14, 86Aug 18, 87[F28D]
4687650 Methods of extracting hydrogen from a gasExpiredFeb 26, 86Aug 18, 87[C01B]
4589919 Metal bound and ballasted hydridable pelletsExpiredJul 02, 81May 20, 86[C01B]
4566281 Reaction heat storage method for hydride tanksExpiredFeb 12, 79Jan 28, 86[F17C, F26B]
4544527 Hydrogen from ammoniaExpiredFeb 11, 85Oct 01, 85[C01B, B01J]
4505120 Hydrogen compressorExpiredDec 27, 82Mar 19, 85[F17C]
4436537 Modular hydride containerExpiredSep 22, 80Mar 13, 84[B01D]
4433537 Method of manufacturing a row of continuous coupling elements for slide fastenersExpiredMay 18, 82Feb 28, 84[B29C, B29D, D01H]
4409180 Process for manufacturing rare earth intermetallic hydridable compoundsExpiredMay 26, 82Oct 11, 83[C22C]
4402187 Hydrogen compressorExpiredMay 12, 82Sep 06, 83[F17C]
4360505 Recovering hydrogen from gas stream using metal hydrideExpiredJul 02, 81Nov 23, 82[C01B]
4358396 Particulate catalyst and preparationExpiredJan 19, 81Nov 09, 82[B01J]
4332698 Catalyst sheet and preparationExpiredJan 19, 81Jun 01, 82[B01J]
4249940 Mischmetal-nickel-iron hydrogen storage compoundExpiredJan 08, 79Feb 10, 81[C22C]
4188795 Hydrogen-hydride absorption systems and methods for refrigeration and heat pump cyclesExpiredDec 14, 78Feb 19, 80[F01K, F25B]

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