Clean Energy Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 1049
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 621
 
  
 
E21B EARTH OR ROCK DRILLING 294
 
  
 
F01K STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 226
 
  
 
F02G HOT-GAS OR COMBUSTION- PRODUCT POSITIVE-DISPLaCEMENT ENGINE PLANTS 221
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 122
 
  
 
F22D PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS 19
 
  
 
F23J REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 116

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8936080 Method of direct steam generation using an oxyfuel combustorSep 03, 13Jan 20, 15[F22B, E21B]
8833080 Arrangement with a steam turbine and a condenserMar 31, 08Sep 16, 14[F01K, F22D]
8522871 Method of direct steam generation using an oxyfuel combustorMar 04, 10Sep 03, 13[E21B]
7882692 Zero emissions closed rankine cycle power systemApr 30, 07Feb 08, 11[F02C]
7827794 Ultra low emissions fast starting power plantNov 07, 06Nov 09, 10[F02C, F02G]
7637109 Power generation system including a gas generator combined with a liquified natural gas supplyJul 01, 05Dec 29, 09[F02C]
7043920 Hydrocarbon combustion power generation system with CO2 sequestrationJul 08, 03May 16, 06[F01B]
7021063 Reheat heat exchanger power generation systemsMar 10, 04Apr 04, 06[F02C]
6598398 Hydrocarbon combustion power generation system with CO2 sequestrationMay 21, 02Jul 29, 03[F01B]
6523349 Clean air engines for transportation and other power applicationsJun 19, 01Feb 25, 03[F01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0137,779 NEAR ZERO EMISSIONS PRODUCTION OF CLEAN HIGH PRESSURE STEAMAbandonedOct 08, 13May 22, 14[F23J, F23L]
8631658 Method and system for enhancing power output of renewable thermal cycle power plantsExpiredMar 09, 09Jan 21, 14[F01K, F02C]
2013/0022,537 HYDROGEN PRODUCTION FROM AN OXYFUEL COMBUSTORAbandonedSep 25, 12Jan 24, 13[C01B]
2012/0160,187 ZERO EMISSION STEAM GENERATION PROCESSAbandonedAug 31, 11Jun 28, 12[F23L, F22B]
2010/0326,084 Methods of oxy-combustion power generation using low heating value fuelAbandonedMar 04, 10Dec 30, 10[F01K]
2008/0115,500 Combustion of water borne fuels in an oxy-combustion gas generatorAbandonedNov 14, 07May 22, 08[F02B, F02C]
2007/0199,300 Hybrid oxy-fuel combustion power processAbandonedFeb 21, 07Aug 30, 07[F02C]
2007/0044,479 Hydrogen production from an oxyfuel combustorAbandonedAug 10, 06Mar 01, 07[F02C]
2005/0241,311 Zero emissions closed rankine cycle power systemAbandonedApr 18, 05Nov 03, 05[F01K]
6945029 Low pollution power generation system with ion transfer membrane air separationExpiredNov 17, 03Sep 20, 05[F02C]
6910335 Semi-closed Brayton cycle gas turbine power systemsExpiredAug 22, 03Jun 28, 05[F02C, F02G]
6868677 Combined fuel cell and fuel combustion power generation systemsExpiredMay 24, 02Mar 22, 05[F02C]
6824710 Working fluid compositions for use in semi-closed brayton cycle gas turbine power systemsExpiredMay 14, 01Nov 30, 04[C01B, F02C]
6637183 Semi-closed brayton cycle gas turbine power systemsExpiredMay 14, 01Oct 28, 03[F02C]
6622470 Semi-closed brayton cycle gas turbine power systemsExpiredMay 14, 01Sep 23, 03[F02C]
2003/0131,582 Coal and syngas fueled power generation systems featuring zero atmospheric emissionsAbandonedNov 25, 02Jul 17, 03[F02C]
5715673 Reduced pollution power generation systemExpiredJun 25, 96Feb 10, 98[F02C]
5709077 Reduce pollution hydrocarbon combustion gas generatorExpiredAug 25, 95Jan 20, 98[F02C]
5695643 Process for brine disposalExpiredSep 17, 93Dec 09, 97[B01D]

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