Inventor
SAWYER RICHARD D
US15 patents
⚠️ This page may combine multiple inventors who share the name “SAWYER RICHARD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UTC FUEL CELLS LLC
4 patentsUS6858336B2Feb 22, 2005
Procedure for shutting down a fuel cell system using air purge
UTC FUEL CELLS LLC61 citations96
US6569549B1May 27, 2003
Method for increasing the operational efficiency of a fuel cell power plant
UTC FUEL CELLS LLC55 citations96
US6887599B2May 3, 2005
Procedure for starting up a fuel cell system using a fuel purge
UTC FUEL CELLS LLC39 citations92
US6455183B1Sep 24, 2002
Vacuum oxidant PEM fuel cell
UTC FUEL CELLS LLC13 citations74
INT FUEL CELLS CORP
3 patentsUS4769297ASep 6, 1988
Solid polymer electrolyte fuel cell stack water management system
INT FUEL CELLS CORP215 citations99
US5270132ADec 14, 1993
Minimized corrosion fuel cell device and a method of making the same
INT FUEL CELLS CORP23 citations92
US4755439AJul 5, 1988
Fuel cell configuration for contaminated fuel gases and method of using the same
INT FUEL CELLS CORP28 citations92
UNITED TECHNOLOGIES CORP
3 patentsUS4574112AMar 4, 1986
Cooling system for electrochemical fuel cell
UNITED TECHNOLOGIES CORP67 citations94
US4372759AFeb 8, 1983
Electrolyte vapor condenser
UNITED TECHNOLOGIES CORP39 citations92
US4198597AApr 15, 1980
Negative cell detector for a multi-cell fuel cell stack
UNITED TECHNOLOGIES CORP45 citations92
UTC POWER CORP
3 patentsUS7410712B2Aug 12, 2008
Procedure for starting up a fuel cell system using a fuel purge
UTC POWER CORP7 citations74
US7250229B2Jul 31, 2007
Procedure for starting up a fuel cell system having an anode exhaust recycle loop
UTC POWER CORP6 citations62
US7258945B2Aug 21, 2007
Fuel cell having a hydrophilic substrate layer
UTC POWER CORP5 citations59