Assignee
HYDROGENICS CORP
CA·95 granted patents·51 pending applications·1,270 citations·filing 2000–2025
Top patents by PatentIndex Score
146 records- 0195US11757119B1Systems and methods for hydrogen supply valve leak detectionHYDROGENICS CORP·Filed 2023·Granted Sep 12, 2023·3 cites·20 claims
- 0293US11761103B2Electrolyser and energy systemHYDROGENICS CORP·Filed 2021·Granted Sep 19, 2023·2 cites·19 claims
- 0393US6852439B2Apparatus for and method of forming seals in fuel cells and fuel cell stacksHYDROGENICS CORP·Filed 2001·Granted Feb 8, 2005·56 cites·23 claims
- 0492US7141321B2System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehiclesHYDROGENICS CORP·Filed 2003·Granted Nov 28, 2006·228 cites·64 claims
- 0592US6619054B1Condenser for dehumidifying gasHYDROGENICS CORP·Filed 2002·Granted Sep 16, 2003·52 cites·26 claims
- 0691US11757116B1Dynamic adjustment of current or power draw for fuel cell applications with enhanced transient capabilitiesHYDROGENICS CORP·Filed 2023·Granted Sep 12, 2023·4 cites·20 claims
- 0791US6875535B2Manifold for a fuel cell systemHYDROGENICS CORP·Filed 2002·Granted Apr 5, 2005·45 cites·19 claims
- 0891US6541141B1Water recovery in the anode side of a proton exchange membrane fuel cellHYDROGENICS CORP·Filed 2000·Granted Apr 1, 2003·45 cites·15 claims
- 0991US6519539B1Measurement of fuel cell impedanceHYDROGENICS CORP·Filed 2000·Granted Feb 11, 2003·57 cites·20 claims
- 1090US11757117B2Fuel cell systems with series-connected subsystemsHYDROGENICS CORP·Filed 2022·Granted Sep 12, 2023·4 cites·15 claims
- 1190US11479866B2High or differential pressure electrolysis cellHYDROGENICS CORP·Filed 2020·Granted Oct 25, 2022·3 cites·20 claims
- 1290US6673479B2System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehiclesHYDROGENICS CORP·Filed 2001·Granted Jan 6, 2004·159 cites·54 claims
- 1389US11855320B2Fuel leak detection in fuel cell stackHYDROGENICS CORP·Filed 2023·Granted Dec 26, 2023·2 cites·20 claims
- 1489US10590545B2High or differential pressure electrolysis cellHYDROGENICS CORP·Filed 2016·Granted Mar 17, 2020·4 cites·4 claims
- 1589US6833207B2Unitized regenerative fuel cell with bifunctional fuel cell humidifier and water electrolyzerHYDROGENICS CORP·Filed 2001·Granted Dec 21, 2004·65 cites·28 claims
- 1688US6727012B2Method and apparatus for generating hydrogen inside of a fuel cellHYDROGENICS CORP·Filed 2001·Granted Apr 27, 2004·45 cites·42 claims
- 1787US10181610B2Fast starting fuel cellHYDROGENICS CORP·Filed 2014·Granted Jan 15, 2019·10 cites·19 claims
- 1887US9368814B2System and method for controlling fuel cell moduleHYDROGENICS CORP·Filed 2013·Granted Jun 14, 2016·4 cites·3 claims
- 1984US10164278B2Nitrogen enriched air generation and fuel tank inerting systemHYDROGENICS CORP·Filed 2014·Granted Dec 25, 2018·2 cites·14 claims
- 2084US6737184B2Chemical hydride hydrogen generation system and an energy system incorporating the sameHYDROGENICS CORP·Filed 2001·Granted May 18, 2004·39 cites·28 claims
- 2183US12272847B2System and method for controlling voltage of fuel cellHYDROGENICS CORP·Filed 2022·Granted Apr 8, 2025·0 cites·19 claims
- 2283US7425379B2Passive electrode blanketing in a fuel cellHYDROGENICS CORP·Filed 2004·Granted Sep 16, 2008·23 cites·31 claims
- 2383US6787254B2Method and apparatus for humidification and temperature control of incoming fuel cell process gasHYDROGENICS CORP·Filed 2001·Granted Sep 7, 2004·19 cites·16 claims
- 2482US6878477B2Fuel cell flow field plateHYDROGENICS CORP·Filed 2002·Granted Apr 12, 2005·21 cites·28 claims
- 2582US6602625B1Fuel cell with dual end plate humidifiersHYDROGENICS CORP·Filed 2000·Granted Aug 5, 2003·23 cites·13 claims
- 2682US6436563B1Water recovery, primarily in the cathode side, of a proton exchange membrane fuel cellHYDROGENICS CORP·Filed 2000·Granted Aug 20, 2002·22 cites·16 claims
- 2780US12482840B2Fuel leak detection in fuel cell stackHYDROGENICS CORP·Filed 2023·Granted Nov 25, 2025·0 cites·9 claims
- 2880US12365999B2Electrolyser and energy systemHYDROGENICS CORP·Filed 2023·Granted Jul 22, 2025·0 cites·20 claims
- 2980US11611089B2Thermal management system and method of positioning and adjusting coolant flow for stationary vehicle fuel cell applicationsHYDROGENICS CORP·Filed 2022·Granted Mar 21, 2023·1 cites·20 claims
- 3080US6816797B2System and method for measuring fuel cell voltage and high frequency resistanceHYDROGENICS CORP·Filed 2002·Granted Nov 9, 2004·28 cites·16 claims
- 3179US11804611B2Fuel cell start up methodHYDROGENICS CORP·Filed 2021·Granted Oct 31, 2023·0 cites·20 claims
- 3279US11767598B2High or differential pressure electrolysis cellHYDROGENICS CORP·Filed 2022·Granted Sep 26, 2023·0 cites·20 claims
- 3379US7210220B2Apparatus for and method of forming seals in fuel cells and fuel stacksHYDROGENICS CORP·Filed 2003·Granted May 1, 2007·14 cites·31 claims
- 3479US7018732B2System and method for management of gas and water in fuel cell systemHYDROGENICS CORP·Filed 2002·Granted Mar 28, 2006·22 cites·33 claims
- 3578US7353085B2Electrolyzer cell stack systemHYDROGENICS CORP·Filed 2004·Granted Apr 1, 2008·20 cites·23 claims
- 3676US12100869B2Fuel cell sub-assembly and method of making itHYDROGENICS CORP·Filed 2021·Granted Sep 24, 2024·0 cites·20 claims
- 3776US6746789B1Catalytic humidifier and heater for the fuel stream of a fuel cellHYDROGENICS CORP·Filed 2000·Granted Jun 8, 2004·13 cites·4 claims
- 3875US12482835B2Thermal management system and method of positioning and adjusting coolant flow for stationary vehicle fuel cell applicationsHYDROGENICS CORP·Filed 2023·Granted Nov 25, 2025·0 cites·11 claims
- 3975US11495807B2Fuel cell start up methodHYDROGENICS CORP·Filed 2020·Granted Nov 8, 2022·0 cites·20 claims
- 4075US11456470B2System and method for controlling voltage of fuel cellHYDROGENICS CORP·Filed 2020·Granted Sep 27, 2022·0 cites·20 claims
- 4175US11411232B2Closed anode fuel cell startup methodHYDROGENICS CORP·Filed 2020·Granted Aug 9, 2022·0 cites·20 claims
- 4275US11268201B2Electrolyser and energy systemHYDROGENICS CORP·Filed 2019·Granted Mar 8, 2022·1 cites·21 claims
- 4375US11101477B2Fuel cell start up methodHYDROGENICS CORP·Filed 2019·Granted Aug 24, 2021·0 cites·14 claims
- 4475US2025336996A1Impurity removal system for use in a fuel cell systemHYDROGENICS CORP·Filed 2025·Application pending·0 cites
- 4573US10923739B2Fuel cell sub-assembly and method of making itHYDROGENICS CORP·Filed 2018·Granted Feb 16, 2021·0 cites·11 claims
- 4673US7432008B2Gas diffusion layer for an electrochemical cellHYDROGENICS CORP·Filed 2003·Granted Oct 7, 2008·12 cites·10 claims
- 4773US7045230B2Chemical hydride hydrogen generation system and fuel cell stack incorporating a common heat transfer circuitHYDROGENICS CORP·Filed 2001·Granted May 16, 2006·17 cites·23 claims
- 4873US6758981B2Method and apparatus for by-product removal in a hydrogen generation systemHYDROGENICS CORP·Filed 2001·Granted Jul 6, 2004·18 cites·34 claims
- 4973US2025112251A1Systems and methods for reducing damage on a metal plate stackHYDROGENICS CORP·Filed 2024·Application pending·0 cites
- 5072US12500251B2Systems and methods for liquid heating balance of plant components of a fuel cell moduleHYDROGENICS CORP·Filed 2022·Granted Dec 16, 2025·0 cites·20 claims
Showing the top 50 of 146 patent records by PatentIndex Score.
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