QUESTAIR TECHNOLOGIES INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 1133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE38493 Flow regulated pressure swing adsorption systemMay 16, 02Apr 13, 04[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0311,420 Method for making parallel passage contactorsAbandonedJan 03, 06Dec 17, 09[B05D]
2009/0214,902 Adsorptive Bulk Separation for Upgrading Gas StreamsAbandonedJun 15, 06Aug 27, 09[H01M]
2006/0090,646 Adsorbent material for selective adsorption of carbon monoxide and unsaturated hydrocarbonsAbandonedNov 03, 05May 04, 06[B01D]
2006/0048,648 Parallel passage contactor structureAbandonedAug 19, 05Mar 09, 06[B01D]
2005/0129,952 High density adsorbent structuresAbandonedSep 29, 04Jun 16, 05[B32B]
2004/0197,596 Spacerless parallel passage contractorAbandonedFeb 03, 04Oct 07, 04[C03C]
2004/0197,612 Hydrogen recycle for high temperature fuel cellsAbandonedFeb 26, 04Oct 07, 04[H01M]
2004/0131,911 Fuel cell system having a pressure swing adsorption unitAbandonedFeb 06, 04Jul 08, 04[H01M]
2003/0196,550 Life support oxygen concentratorAbandonedFeb 04, 03Oct 23, 03[B01D]
2003/0157,390 Electrical current generation systemAbandonedNov 01, 02Aug 21, 03[H01M]
2002/0112,479 Power plant with energy recovery from fuel storageAbandonedJan 08, 02Aug 22, 02[F01K]

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