Jenara Enterprises Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02D CONTROLLING COMBUSTION ENGINES 568
 
  
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 352
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8011347 Apparatus and method for pressure relief in an exhaust brakeAug 02, 10Sep 06, 11[F01N, F02D]
7765981 Apparatus and method for pressure relief in an exhaust brakeDec 06, 04Aug 03, 10[F02D]
7063099 Exhaust gas control valve, apparatus and method of controlling exhaust gas flowApr 18, 05Jun 20, 06[F16K]
6925976 Modal variable valve actuation system for internal combustion engine and method for operating the sameMar 05, 04Aug 09, 05[F01L, F02D]
6386160 Valve control apparatus with resetDec 22, 99May 14, 02[F01L]
6314926 Valve control apparatusMay 24, 99Nov 13, 01[F01L]
5445248 Exhaust brakeMar 07, 94Aug 29, 95[F02D]
5215054 Valve control apparatus and methodJun 29, 92Jun 01, 93[F02D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0224,046 Apparatus and method for retarding an engine with an exhaust brake and a compression release brakeAbandonedMay 02, 05Oct 13, 05[F02D]
6880572 Exhaust gas control valve, apparatus and method of controlling exhaust gas flowExpiredApr 15, 03Apr 19, 05[F16K]
6810850 Apparatus and control for variable exhaust brakeExpiredApr 19, 02Nov 02, 04[F02D]
2003/0178,002 Apparatus and method to operate an engine exhaust brake together with an exhaust gas recirculation systemAbandonedFeb 27, 03Sep 25, 03[F02D]
5105782 Compression release brake with variable ratio master and slave cylinder combinationExpiredFeb 27, 91Apr 21, 92[F02D]
5036810 Engine brake and methodExpiredAug 07, 90Aug 06, 91[F01L, F02D]
4932372 Apparatus and method for retarding a turbocharged engineExpiredJul 18, 89Jun 12, 90[F01L]
4898128 Anti-lash adjusterExpiredApr 07, 88Feb 06, 90[F02D]
4848289 Apparatus and method for retarding an engineExpiredMay 02, 88Jul 18, 89[F01L, F02D]
4741307 Apparatus and method for compression release retarding of an engineExpiredFeb 17, 87May 03, 88[F22B]
4697558 Compression relief engine brakeExpiredFeb 18, 86Oct 06, 87[F02D]
4655178 Anti-lash adjusterExpiredMay 08, 85Apr 07, 87[F02D]

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