BALLARD POWER SYSTEMS AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7317316 Apparatus and method for measuring the insulation resistance of a fuel cell systemJun 29, 05Jan 08, 08[H01H]
6624856 Liquid crystal display device having thin film transistors for reducing leak currentJul 03, 01Sep 23, 03[H01L, G02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0051,629 Fuel cell system and shutdown method for a fuel cell systemAbandonedJul 26, 05Mar 09, 06[H01M]
2005/0287,049 Method and device for catalytic nitrogen oxide reduction of motor vehicle exhaustAbandonedJun 16, 05Dec 29, 05[F01N]
2005/0242,157 Reactor structure as a heat exchanger layer stacking construction and method of making sameAbandonedJul 12, 05Nov 03, 05[B23K]
2003/0091,874 Method and apparatus to control water balance in a fuel cell systemAbandonedOct 18, 02May 15, 03[H01M]
2003/0014,865 Catalytic coating of structured heat exchanger platesAbandonedJun 14, 02Jan 23, 03[B21D]
2003/0010,399 System for supplying power to consumersAbandonedJun 14, 02Jan 16, 03[B65B]
2003/0012,991 Pressure regulator for a fuel cell system and method of making a pressure regulatorAbandonedMay 16, 02Jan 16, 03[H01M, F17D]
2002/0192,515 Production of a securely adhering, hydrophobic catalyst layerAbandonedMar 22, 02Dec 19, 02[C01B, H01M, B01J]
2002/0172,259 Electrical temperature measuring deviceAbandonedMar 01, 02Nov 21, 02[G01K]
2002/0148,269 Method of producing microstructured metal sheetsAbandonedFeb 22, 02Oct 17, 02[B21B]
2002/0119,084 Reactor for a fuel cell system and method of making a reactorAbandonedFeb 04, 02Aug 29, 02[F28D, B01J]
2002/0092,690 Method and apparatus for starting a vehicleAbandonedNov 30, 01Jul 18, 02[B60K, B62D]
2002/0090,538 Fuel cell system and method of operating the fuel cell systemAbandonedDec 20, 01Jul 11, 02[H01M]
2002/0063,165 Device for recycling condensed liquid into a gas streamAbandonedOct 24, 01May 30, 02[B05B]
2002/0059,754 Gas-production system for a fuel cell system, and method for producing hydrogenous fuelAbandonedOct 29, 01May 23, 02[C01B, C10K, C10J]
2002/0053,368 Apparatus and method for filling a tank for an ignitable mediumAbandonedNov 07, 01May 09, 02[B67C, B65B]
2002/0041,823 Storage tank for a gaseous mediumAbandonedAug 08, 01Apr 11, 02[A01N, C23F, A61L]
2002/0031,691 Fuel cell systemAbandonedAug 17, 01Mar 14, 02[H01M]
2002/0028,363 Method for operating a gas generation systemAbandonedJul 26, 01Mar 07, 02[B60K, H01M, B60L]
2002/0025,463 Fuel cell systemAbandonedJul 05, 01Feb 28, 02[H01M]

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