Inventor
CHAN DAVID Y
US25 patents
⚠️ This page may combine multiple inventors who share the name “CHAN DAVID Y”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEVITON MANUFACTURING CO
17 patentsUS6671145B2Dec 30, 2003
Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
LEVITON MANUFACTURING CO150 citations98
US6828886B2Dec 7, 2004
Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
LEVITON MANUFACTURING CO96 citations97
US6900972B1May 31, 2005
Circuit interrupter with improved surge suppression
LEVITON MANUFACTURING CO68 citations96
US5917686AJun 29, 1999
High current ground fault circuit interrupter
LEVITON MANUFACTURING CO64 citations96
US7542252B2Jun 2, 2009
Circuit interrupting device having integrated enhanced RFI suppression
LEVITON MANUFACTURING CO55 citations93
US7098761B2Aug 29, 2006
Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
LEVITON MANUFACTURING CO42 citations92
US7042688B2May 9, 2006
Neutral switch test mechanism for a circuit interrupter
LEVITON MANUFACTURING CO35 citations92
US6556395B1Apr 29, 2003
Ground fault circuit interrupter for circuits operating with non-sinusoidal waveforms
LEVITON MANUFACTURING CO21 citations92
US7164563B2Jan 16, 2007
Circuit interrupting device line load reversal sensing system
LEVITON MANUFACTURING CO24 citations91
USD313971SJan 22, 1991
Ground fault circuit interrupter
LEVITON MANUFACTURING CO29 citations90
US5864455AJan 26, 1999
In-line cord ground fault circuit interrupter
LEVITON MANUFACTURING CO36 citations89
US7697252B2Apr 13, 2010
Overvoltage device with enhanced surge suppression
LEVITON MANUFACTURING CO11 citations84
US7012500B2Mar 14, 2006
GFCI with enhanced surge suppression
LEVITON MANUFACTURING CO14 citations84
US7889466B2Feb 15, 2011
Fault circuit interrupter with bi-directional sensing
LEVITON MANUFACTURING CO13 citations83
US7375935B2May 20, 2008
Ground fault circuit interrupter with enhanced radio frequency interference suppression
LEVITON MANUFACTURING CO11 citations83
USRE42866EOct 25, 2011
Ground fault circuit interrupter with enhanced radio frequency interference suppression
LEVITON MANUFACTURING CO3 citations61
US7813091B2Oct 12, 2010
Leakage current detector interrupter with continuous duty relay
LEVITON MANUFACTURING CO1 citations49
PHOTRONICS INC
5 patentsUS6472107B1Oct 29, 2002
Disposable hard mask for photomask plasma etching
PHOTRONICS INC100 citations98
US6682861B2Jan 27, 2004
Disposable hard mask for phase shift photomask plasma etching
PHOTRONICS INC14 citations84
US6908716B2Jun 21, 2005
Disposable hard mask for photomask plasma etching
PHOTRONICS INC7 citations74
US6749974B2Jun 15, 2004
Disposable hard mask for photomask plasma etching
PHOTRONICS INC12 citations74
US6537708B2Mar 25, 2003
Electrical critical dimension measurements on photomasks
PHOTRONICS INC6 citations63