Inventor
BALLIET RYAN J
US16 patents
⚠️ This page may combine multiple inventors who share the name “BALLIET RYAN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UTC FUEL CELLS LLC
7 patentsUS6984464B2Jan 10, 2006
Hydrogen passivation shut down system for a fuel cell power plant
UTC FUEL CELLS LLC55 citations94
US6838199B2Jan 4, 2005
Start up system and method for a fuel cell power plant using a cathode electrode fuel purge
UTC FUEL CELLS LLC20 citations92
US6835479B2Dec 28, 2004
System and method for shutting down a fuel cell power plant
UTC FUEL CELLS LLC40 citations92
US7141324B2Nov 28, 2006
Hydrogen passivation shut down system for a fuel cell power plant
UTC FUEL CELLS LLC17 citations91
US6977121B2Dec 20, 2005
Fuel cell power plant having a fuel concentration sensor cell
UTC FUEL CELLS LLC21 citations91
US7147945B2Dec 12, 2006
System for determining a gas composition within a shut down fuel cell power plant and method of operation
UTC FUEL CELLS LLC14 citations84
US6841278B2Jan 11, 2005
Fuel cell performance recovery by cyclic oxidant starvation
UTC FUEL CELLS LLC9 citations73
UTC POWER CORP
7 patentsUS7855020B1Dec 21, 2010
Hydrogen passivation shut down system for a fuel cell power plant
UTC POWER CORP10 citations82
US7638217B2Dec 29, 2009
Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass
UTC POWER CORP9 citations82
US7579098B2Aug 25, 2009
Fuel cells evaporative reactant gas cooling and operational freeze prevention
UTC POWER CORP4 citations62
US7527886B2May 5, 2009
Start up of cascaded fuel cell stack
UTC POWER CORP5 citations62
US7972740B2Jul 5, 2011
Fuel cell coolant bubble control
UTC POWER CORP1 citations51
US7871732B2Jan 18, 2011
Single reactant gas flow field plate PEM fuel cell
UTC POWER CORP0 citations41
US7645531B2Jan 12, 2010
Retaining water in a fuel cell stack for cooling and humidification during frozen startup
UTC POWER CORP0 citations41