INNOGY PLC

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0279,296 Cylinder for an internal comustion engineAbandonedMar 03, 05Dec 22, 05[F02F]
6883775 Passive valve assemblyExpiredMar 27, 03Apr 26, 05[F16K]
6874453 Two stroke internal combustion engineExpiredApr 28, 03Apr 05, 05[F02B]
6840309 Heat exchangerExpiredApr 01, 03Jan 11, 05[F28F]
6817185 Engine with combustion and expansion of the combustion gases within the combustorExpiredSep 30, 02Nov 16, 04[F02C]
2003/0180,155 Gas compressorAbandonedMay 27, 03Sep 25, 03[F04B]
2003/0139,837 System and method for monitoring a control process in a process plantAbandonedNov 25, 02Jul 24, 03[G06F]
2002/0129,066 Computer implemented method for reformatting logically complex clauses in an electronic text-based documentAbandonedDec 28, 00Sep 12, 02[G06F]
RE37603 Gas compressorExpiredJun 30, 00Mar 26, 02[F04B, F16D]
6295542 Method and apparatus for cross-referencing textExpiredOct 02, 98Sep 25, 01[G06F]
6206660 Apparatus for controlling gas temperature in compressorsExpiredJul 26, 99Mar 27, 01[F04B]
5934076 Heat engine and heat pumpExpiredJun 01, 95Aug 10, 99[F02G]
5474832 Film type packing element for use in cooling towersExpiredFeb 08, 94Dec 12, 95[B32B]

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