Inventor
YU DAMING
CN12 patents
⚠️ This page may combine multiple inventors who share the name “YU DAMING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUBBELL INC
7 patentsUS7149065B2Dec 12, 2006
Self testing digital fault interrupter
HUBBELL INC70 citations96
US7791282B2Sep 7, 2010
Motion sensor switch for 3-way light circuit and method of lighting control using the same
HUBBELL INC77 citations95
US7315437B2Jan 1, 2008
Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) indicator, secondary power supply for EOL and self test circuitry, and device for opening line hot when EOL occurs
HUBBELL INC73 citations93
US7733617B2Jun 8, 2010
Self testing digital fault interrupter
HUBBELL INC22 citations92
US6566882B2May 20, 2003
Method and apparatus for device-dependent calibration of relays for high accuracy operation at zero-crossing of input power signal
HUBBELL INC28 citations92
US7791848B2Sep 7, 2010
Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) detection that rejects false EOL information
HUBBELL INC26 citations91
US7800873B2Sep 21, 2010
Ground fault circuit interruptor (GFCI) device having safe contact end-of-life condition and method of detecting same in a GFCI device
HUBBELL INC15 citations81