Inventor
PERKINS DAVID E
US11 patents
⚠️ This page may combine multiple inventors who share the name “PERKINS DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ACTIVE POWER INC
9 patentsUS7127895B2Oct 31, 2006
Systems and methods for providing backup energy to a load
ACTIVE POWER INC61 citations95
US7693402B2Apr 6, 2010
Thermal storage unit and methods for using the same to heat a fluid
ACTIVE POWER INC103 citations94
US6657320B1Dec 2, 2003
Integrated flywheel uninterruptible power supply system
ACTIVE POWER INC67 citations93
US7750518B1Jul 6, 2010
Transient energy systems and methods for use of the same
ACTIVE POWER INC24 citations92
US6208056B1Mar 27, 2001
Cartridge armatures for electro-dynamic machines
ACTIVE POWER INC49 citations92
US7425807B1Sep 16, 2008
Transient energy systems and methods for use of the same
ACTIVE POWER INC20 citations89
US6642682B1Nov 4, 2003
Circuits and methods for preheating a rotor of a motor-generator device
ACTIVE POWER INC41 citations86
US6955050B2Oct 18, 2005
Thermal storage unit and methods for using the same to heat a fluid
ACTIVE POWER INC18 citations83
US7918091B1Apr 5, 2011
Systems and methods for controlling humidity
ACTIVE POWER INC4 citations62