Assignee
HYDROGENICS CORP
CA95 patents
Top patents by PatentIndex Score
US7141321B2Nov 28, 2006
System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehicles
HYDROGENICS CORP228 citations94
US6673479B2Jan 6, 2004
System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehicles
HYDROGENICS CORP159 citations94
US6519539B1Feb 11, 2003
Measurement of fuel cell impedance
HYDROGENICS CORP57 citations94
US7425379B2Sep 16, 2008
Passive electrode blanketing in a fuel cell
HYDROGENICS CORP23 citations92
US6878477B2Apr 12, 2005
Fuel cell flow field plate
HYDROGENICS CORP21 citations92
US6875535B2Apr 5, 2005
Manifold for a fuel cell system
HYDROGENICS CORP45 citations92
US6852439B2Feb 8, 2005
Apparatus for and method of forming seals in fuel cells and fuel cell stacks
HYDROGENICS CORP56 citations92
US6833207B2Dec 21, 2004
Unitized regenerative fuel cell with bifunctional fuel cell humidifier and water electrolyzer
HYDROGENICS CORP65 citations92
US6727012B2Apr 27, 2004
Method and apparatus for generating hydrogen inside of a fuel cell
HYDROGENICS CORP45 citations92
US6602625B1Aug 5, 2003
Fuel cell with dual end plate humidifiers
HYDROGENICS CORP23 citations92
US6541141B1Apr 1, 2003
Water recovery in the anode side of a proton exchange membrane fuel cell
HYDROGENICS CORP45 citations92
US6436563B1Aug 20, 2002
Water recovery, primarily in the cathode side, of a proton exchange membrane fuel cell
HYDROGENICS CORP22 citations92
US6787254B2Sep 7, 2004
Method and apparatus for humidification and temperature control of incoming fuel cell process gas
HYDROGENICS CORP19 citations91
US6619054B1Sep 16, 2003
Condenser for dehumidifying gas
HYDROGENICS CORP52 citations91
US6816797B2Nov 9, 2004
System and method for measuring fuel cell voltage and high frequency resistance
HYDROGENICS CORP28 citations90
US7353085B2Apr 1, 2008
Electrolyzer cell stack system
HYDROGENICS CORP20 citations89
US7210220B2May 1, 2007
Apparatus for and method of forming seals in fuel cells and fuel stacks
HYDROGENICS CORP14 citations89
US7018732B2Mar 28, 2006
System and method for management of gas and water in fuel cell system
HYDROGENICS CORP22 citations89
US6737184B2May 18, 2004
Chemical hydride hydrogen generation system and an energy system incorporating the same
HYDROGENICS CORP39 citations89
US7432008B2Oct 7, 2008
Gas diffusion layer for an electrochemical cell
HYDROGENICS CORP12 citations84
US10181610B2Jan 15, 2019
Fast starting fuel cell
HYDROGENICS CORP10 citations83
US7077187B2Jul 18, 2006
Apparatus for exchanging energy and/or mass
HYDROGENICS CORP13 citations83
US6746789B1Jun 8, 2004
Catalytic humidifier and heater for the fuel stream of a fuel cell
HYDROGENICS CORP13 citations83
US7338545B2Mar 4, 2008
Apparatus for separating liquid from a process gas stream of an electrochemical cell stack
HYDROGENICS CORP13 citations82
US6866061B2Mar 15, 2005
Back pressure valve with dynamic pressure control
HYDROGENICS CORP12 citations82
US7045230B2May 16, 2006
Chemical hydride hydrogen generation system and fuel cell stack incorporating a common heat transfer circuit
HYDROGENICS CORP17 citations81
US6946104B2Sep 20, 2005
Chemical hydride hydrogen generation system and an energy system incorporating the same
HYDROGENICS CORP15 citations79
US6758981B2Jul 6, 2004
Method and apparatus for by-product removal in a hydrogen generation system
HYDROGENICS CORP18 citations79
US6889147B2May 3, 2005
System, computer program product and method for controlling a fuel cell testing device
HYDROGENICS CORP14 citations75
US6978224B2Dec 20, 2005
Alarm recovery system and method for fuel cell testing systems
HYDROGENICS CORP7 citations73
US11761103B2Sep 19, 2023
Electrolyser and energy system
HYDROGENICS CORP2 citations72
US11268201B2Mar 8, 2022
Electrolyser and energy system
HYDROGENICS CORP1 citations72
US10435800B2Oct 8, 2019
Electrolyser and energy system
HYDROGENICS CORP2 citations72
US10214821B2Feb 26, 2019
Electrolyser and energy system
HYDROGENICS CORP1 citations72
US10164278B2Dec 25, 2018
Nitrogen enriched air generation and fuel tank inerting system
HYDROGENICS CORP2 citations72
US9368814B2Jun 14, 2016
System and method for controlling fuel cell module
HYDROGENICS CORP4 citations72
US7261150B2Aug 28, 2007
Apparatus for humidification and temperature control of incoming fuel cell process gas
HYDROGENICS CORP5 citations72
US7051801B1May 30, 2006
Method and apparatus for humidification and temperature control of incoming fuel cell process gas
HYDROGENICS CORP7 citations72
US6869717B2Mar 22, 2005
Manifold for a fuel cell system
HYDROGENICS CORP10 citations72
US6706429B1Mar 16, 2004
Catalytic humidifier and heater, primarily for humidification of the oxidant stream for a fuel cell
HYDROGENICS CORP9 citations72
US7323263B2Jan 29, 2008
Fuel cell system and method of operation to reduce parasitic load of fuel cell peripherals
HYDROGENICS CORP8 citations71
US7148654B2Dec 12, 2006
Method and apparatus for monitoring fuel cell voltages
HYDROGENICS CORP8 citations71
US7138202B2Nov 21, 2006
Apparatus for and method of forming seals in fuel cells and fuel stacks
HYDROGENICS CORP7 citations71
US11757119B1Sep 12, 2023
Systems and methods for hydrogen supply valve leak detection
HYDROGENICS CORP3 citations70
US11479866B2Oct 25, 2022
High or differential pressure electrolysis cell
HYDROGENICS CORP3 citations70
US10590545B2Mar 17, 2020
High or differential pressure electrolysis cell
HYDROGENICS CORP4 citations70
US7117106B2Oct 3, 2006
System and method for alarm recovery for an electrolyzer cell module
HYDROGENICS CORP7 citations70
US7149641B2Dec 12, 2006
System and method for controlling a fuel cell testing device
HYDROGENICS CORP5 citations69
US11757117B2Sep 12, 2023
Fuel cell systems with series-connected subsystems
HYDROGENICS CORP4 citations68
US11757116B1Sep 12, 2023
Dynamic adjustment of current or power draw for fuel cell applications with enhanced transient capabilities
HYDROGENICS CORP4 citations68
Showing the top 50 of 95 patents by PatentIndex Score.