Inventor
HALLUM RYAN
US16 patents
⚠️ This page may combine multiple inventors who share the name “HALLUM RYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PLUG POWER INC
12 patentsUS6939635B2Sep 6, 2005
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC20 citations92
US6835483B2Dec 28, 2004
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC19 citations92
US6740437B2May 25, 2004
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC17 citations92
US6650968B2Nov 18, 2003
Technique to regulate an efficiency of a fuel cell system
PLUG POWER INC25 citations88
US7026065B2Apr 11, 2006
Fuel cell system heat recovery
PLUG POWER INC17 citations84
US7332236B2Feb 19, 2008
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC8 citations73
US6576356B1Jun 10, 2003
Preconditioning membranes of a fuel cell stack
PLUG POWER INC9 citations73
US7285346B2Oct 23, 2007
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC2 citations62
US7276307B2Oct 2, 2007
Method and apparatus for controlling a combined heat and power fuel cell system
PLUG POWER INC2 citations62
US6774637B2Aug 10, 2004
Method of qualifying at least a portion of a fuel cell system and an apparatus employing same
PLUG POWER INC2 citations59
US7166379B2Jan 23, 2007
Technique to regulate an efficiency of a fuel cell system
PLUG POWER INC1 citations58
US7166378B2Jan 23, 2007
Technique to regulate an efficiency of a fuel cell system
PLUG POWER INC2 citations58