BDF IP HOLDINGS LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 31123
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 3122
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 276
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2007/0207,367 System and method of operation of a fuel cell system and of ceasing the same for inhibiting corrosionFeb 07, 06Sep 06, 07[H01M]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9099704 Methods of operating fuel cell stacks and systemsJun 03, 10Aug 04, 15[H01M]
8168025 Methods of making components for electrochemical cellsApr 20, 07May 01, 12[B29C, H01M, B44C, B32B]
8053122 System and method of starting a fuel cell systemApr 11, 08Nov 08, 11[H01M]
7964315 Shutdown methods and designs for fuel cell stacksSep 10, 04Jun 21, 11[H01M]
7955739 Shutdown methods and designs for fuel cell stacksMar 13, 06Jun 07, 11[H01M]
7784770 Method for humidifying a reactant stream for a fuel cellJun 08, 06Aug 31, 10[B01F]
7608358 Fuel cell anode structure for voltage reversal toleranceMar 09, 09Oct 27, 09[H01M]
7537857 Reduced degradation of ion-exchange membranes in electrochemical fuel cellsDec 17, 03May 26, 09[H01M]
7226689 Method of making a membrane electrode assembly for electrochemical fuel cellsJun 20, 03Jun 05, 07[H01M]
7160640 Fuel cell stack with passive end cell heaterJan 15, 03Jan 09, 07[H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
H002240 Membrane electrode assembliesExpiredApr 21, 06May 04, 10[H01M]
2009/0258,268 FUEL CELL SYSTEM WITH FUEL CELL STACK RECEPTACLEAbandonedMar 24, 09Oct 15, 09[H01M]
2009/0220,828 SYSTEM AND METHOD FOR FUEL CELL START UPAbandonedMar 13, 07Sep 03, 09[H01M]
2009/0208,803 FLOW FIELD FOR FUEL CELL AND FUEL CELL STACKAbandonedFeb 19, 08Aug 20, 09[H01M]
2009/0162,726 COMPRESSION APPARATUS FOR FUEL CELL STACKAbandonedDec 20, 07Jun 25, 09[H01M]
2009/0081,527 FUEL CELL SYSTEMAbandonedSep 24, 07Mar 26, 09[H01M]
2009/0053,564 METHOD AND SYSTEM FOR OPERATING FUEL CELL STACKS TO REDUCE NON-STEADY STATE CONDITIONS DURING LOAD TRANSIENTSAbandonedFeb 07, 08Feb 26, 09[H01M]
2009/0004,543 MEMBRANE ELECTRODE ASSEMBLIES FOR FUEL CELLS AND METHODS OF MAKINGAbandonedJun 27, 07Jan 01, 09[H01M]
2008/0271,311 DEVICE FOR ASSEMBLING A BANDED FUEL CELL STACKAbandonedMay 13, 08Nov 06, 08[B23P, H01M]
2008/0248,369 FUEL CELL SYSTEM WITH FLAME ARRESTING RECOMBINERAbandonedApr 04, 07Oct 09, 08[H01M]
2008/0241,606 METHOD AND APPARATUS FOR HUMIDIFYING A GAS IN FUEL CELL SYSTEMSAbandonedMar 30, 07Oct 02, 08[H01M]
7429280 Method for producing a membrane for a fuel cellExpiredFeb 10, 06Sep 30, 08[H01M]
2008/0220,154 METHOD OF FORMING FLUID FLOW FIELD PLATES FOR ELECTROCHEMICAL DEVICESAbandonedMar 06, 08Sep 11, 08[B05D]
2008/0187,788 System and method of operation of a fuel cell system and of ceasing the same for inhibiting corrosionAbandonedFeb 06, 07Aug 07, 08[H01M]
2008/0187,813 FUEL CELL ANODE STRUCTURE FOR VOLTAGE REVERSAL TOLERANCEAbandonedAug 23, 07Aug 07, 08[H01M]
2008/0178,991 Method of making membrane electrode assembliesAbandonedJan 26, 07Jul 31, 08[B32B]
2008/0116,623 SPRING HOLDER APPARATUSAbandonedNov 22, 06May 22, 08[F16F]
2008/0118,798 Fuel cell system apparatusAbandonedNov 17, 06May 22, 08[H01M]
7374838 Electrochemical fuel cell with fluid distribution layer having non-uniform permeabilityExpiredJun 10, 03May 20, 08[H01M]
2008/0113,254 APPARATUS AND METHOD FOR MANAGING FLUIDS IN A FUEL CELL STACKAbandonedSep 05, 07May 15, 08[H01M]

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