Assignee
PROTON ENERGY SYS INC
US·74 granted patents·23 pending applications·1,389 citations·filing 1998–2017
Top patents by PatentIndex Score
97 records- 0196US7128103B2Hydrogen fueling systemPROTON ENERGY SYS INC·Filed 2003·Granted Oct 31, 2006·92 cites·19 claims
- 0296US6887601B2Regenerative electrochemical cell system and method for use thereofPROTON ENERGY SYS INC·Filed 2001·Granted May 3, 2005·83 cites·67 claims
- 0395US7241522B2Regenerative electrochemical cell system and method for use thereofPROTON ENERGY SYS INC·Filed 2005·Granted Jul 10, 2007·24 cites·19 claims
- 0495US6471850B2Low gravity electrochemical cellPROTON ENERGY SYS INC·Filed 2000·Granted Oct 29, 2002·60 cites·33 claims
- 0593US6585869B2Means of maintaining compression of the active area in an electrochemical cellPROTON ENERGY SYS INC·Filed 2001·Granted Jul 1, 2003·32 cites·32 claims
- 0692US7244524B2Method and system for balanced control of backup powerPROTON ENERGY SYS INC·Filed 2005·Granted Jul 17, 2007·36 cites·20 claims
- 0792US6613215B2Method for electrolysis of water using a polytetrafluoroethylene supported membrane in electrolysis cellsPROTON ENERGY SYS INC·Filed 2001·Granted Sep 2, 2003·34 cites·23 claims
- 0891US6666961B1High differential pressure electrochemical cellPROTON ENERGY SYS INC·Filed 2000·Granted Dec 23, 2003·38 cites·19 claims
- 0991US6099716AElectrochemical cell framePROTON ENERGY SYS INC·Filed 1998·Granted Aug 8, 2000·65 cites·22 claims
- 1090US7601207B2Gas recovery systemPROTON ENERGY SYS INC·Filed 2007·Granted Oct 13, 2009·11 cites·22 claims
- 1190US6902837B2Method and system for balanced control of backup powerPROTON ENERGY SYS INC·Filed 2002·Granted Jun 7, 2005·68 cites·28 claims
- 1289US6994929B2Electrochemical hydrogen compressor for electrochemical cell system and method for controllingPROTON ENERGY SYS INC·Filed 2003·Granted Feb 7, 2006·48 cites·15 claims
- 1388US7879207B2Electrochemical cell with dynamic endplatePROTON ENERGY SYS INC·Filed 2006·Granted Feb 1, 2011·11 cites·16 claims
- 1488US6855450B2Proton exchange membrane electrochemical cell systemPROTON ENERGY SYS INC·Filed 2001·Granted Feb 15, 2005·30 cites·9 claims
- 1588US6833205B2Electrochemical cell system output control method and apparatusPROTON ENERGY SYS INC·Filed 2001·Granted Dec 21, 2004·23 cites·26 claims
- 1687US7354675B2Apparatus and method for maintaining compression of the active area in an electrochemical cellPROTON ENERGY SYS INC·Filed 2001·Granted Apr 8, 2008·31 cites·11 claims
- 1787US6365032B1Method for operating a high pressure electrochemical cellPROTON ENERGY SYS INC·Filed 1999·Granted Apr 2, 2002·44 cites·38 claims
- 1886US6576362B2Electrochemical cell systemPROTON ENERGY SYS INC·Filed 2000·Granted Jun 10, 2003·28 cites·6 claims
- 1985US7981556B2Thermal management system for regenerative fuel cells and method thereofPROTON ENERGY SYS INC·Filed 2005·Granted Jul 19, 2011·9 cites·10 claims
- 2085US6857397B2Hydrogen generation apparatus for internal combustion engines and method thereofPROTON ENERGY SYS INC·Filed 2003·Granted Feb 22, 2005·18 cites·5 claims
- 2185US6828056B2Electrode catalyst composition, electrode, and membrane electrode assembly for electrochemical cellsPROTON ENERGY SYS INC·Filed 2001·Granted Dec 7, 2004·30 cites·13 claims
- 2284US7168465B2Electrochemical cell system, hydrogen dispensing apparatus, and method for dispensing hydrogenPROTON ENERGY SYS INC·Filed 2003·Granted Jan 30, 2007·24 cites·22 claims
- 2384US7060379B2Method and system for controlling and recovering short duration bridge power to maximize backup powerPROTON ENERGY SYS INC·Filed 2002·Granted Jun 13, 2006·64 cites·14 claims
- 2484US7014932B2Drainage system and process for operating a regenerative electrochemical cell systemPROTON ENERGY SYS INC·Filed 2003·Granted Mar 21, 2006·23 cites·5 claims
- 2584US6907735B2Hydrogen fueled electrical generator system and method thereofPROTON ENERGY SYS INC·Filed 2002·Granted Jun 21, 2005·39 cites·38 claims
- 2682US6706436B2Electrochemical cell design using a bipolar platePROTON ENERGY SYS INC·Filed 2000·Granted Mar 16, 2004·21 cites·27 claims
- 2779US6783885B2Low gravity electrochemical cellPROTON ENERGY SYS INC·Filed 2002·Granted Aug 31, 2004·14 cites·13 claims
- 2878US7507493B2Electrochemical cell having protection against creepPROTON ENERGY SYS INC·Filed 2005·Granted Mar 24, 2009·3 cites·23 claims
- 2978US7083875B2Method and apparatus for providing modular powerPROTON ENERGY SYS INC·Filed 2003·Granted Aug 1, 2006·24 cites·19 claims
- 3078US7006898B2Method and apparatus for operating and controlling a power systemPROTON ENERGY SYS INC·Filed 2003·Granted Feb 28, 2006·20 cites·21 claims
- 3177US7744733B2Gas venting systemPROTON ENERGY SYS INC·Filed 2007·Granted Jun 29, 2010·4 cites·20 claims
- 3277US7360563B2System and method for refueling a hydrogen vesselPROTON ENERGY SYS INC·Filed 2003·Granted Apr 22, 2008·16 cites·22 claims
- 3377US6653011B2Electrochemical cell frame having integral protector portionPROTON ENERGY SYS INC·Filed 2001·Granted Nov 25, 2003·10 cites·11 claims
- 3476US7014947B2Integral membrane support and frame structurePROTON ENERGY SYS INC·Filed 2001·Granted Mar 21, 2006·13 cites·27 claims
- 3575US6368740B1Electrochemical cell frame having integral protector portionPROTON ENERGY SYS INC·Filed 1999·Granted Apr 9, 2002·26 cites·10 claims
- 3675US6117287AElectrochemical cell framePROTON ENERGY SYS INC·Filed 1998·Granted Sep 12, 2000·51 cites·24 claims
- 3774US7153409B2Electrochemical cell system and method of operationPROTON ENERGY SYS INC·Filed 2003·Granted Dec 26, 2006·12 cites·5 claims
- 3873US7166382B2Method and apparatus for improved fluid flow within an electrochemical cellPROTON ENERGY SYS INC·Filed 2001·Granted Jan 23, 2007·8 cites·17 claims
- 3973US7020562B2Method of monitoring the operation of gas sensor and system thereforPROTON ENERGY SYS INC·Filed 2003·Granted Mar 28, 2006·12 cites·24 claims
- 4072US7153802B2Method of making an electrode for a membrane electrode assembly and method of making the membrane electrode assemblyPROTON ENERGY SYS INC·Filed 2004·Granted Dec 26, 2006·18 cites·9 claims
- 4172US6682845B2Apparatus for maintaining compression of the active area in an electrochemical cellPROTON ENERGY SYS INC·Filed 2001·Granted Jan 27, 2004·8 cites·13 claims
- 4271US7850838B2Cold weather hydrogen generation system and method of operationPROTON ENERGY SYS INC·Filed 2006·Granted Dec 14, 2010·4 cites·12 claims
- 4371US7169493B2Fuel cell system with thermal management and method of operation thereofPROTON ENERGY SYS INC·Filed 2003·Granted Jan 30, 2007·13 cites·8 claims
- 4471US6869720B2Method and apparatus for maintaining compression of the active area in an electrochemical cellPROTON ENERGY SYS INC·Filed 2002·Granted Mar 22, 2005·9 cites·21 claims
- 4570US7311116B2Gas regulation system and process for operating the gas regulation systemPROTON ENERGY SYS INC·Filed 2003·Granted Dec 25, 2007·9 cites·14 claims
- 4670US6814841B2Gas liquid phase separator with improved pressure controlPROTON ENERGY SYS INC·Filed 2002·Granted Nov 9, 2004·11 cites·9 claims
- 4768US6723220B2Protonic rate level sensing device for an electrolysis cellPROTON ENERGY SYS INC·Filed 2002·Granted Apr 20, 2004·7 cites·18 claims
- 4867US7767360B2Electrochemical cell apparatusPROTON ENERGY SYS INC·Filed 2007·Granted Aug 3, 2010·1 cites·4 claims
- 4966US6524464B2Fan flow sensor for hydrogen generating proton exchange member electrolysis cellPROTON ENERGY SYS INC·Filed 2001·Granted Feb 25, 2003·10 cites·4 claims
- 5065US6524454B2Integrated membrane and electrode support screen and protector ring for an electrochemical cellPROTON ENERGY SYS INC·Filed 2001·Granted Feb 25, 2003·4 cites·13 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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