DC

David Chan

LC Leviton Manufacturing Co.: 30 patents #12 of 455Top 3%
Lsi Logic: 5 patents #372 of 1,957Top 20%
PH Photronics: 5 patents #3 of 40Top 8%
CH Carestream Health: 2 patents #158 of 406Top 40%
📍 Vaughan, CA: #5 of 927 inventorsTop 1%
Overall (All Time): #72,351 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
12369877 Image acquisition with multiple detectors Xiaohui Wang, Jangho Park 2025-07-29
9808211 Head and neck imager John Yorkston, William C. Wendlandt, Peter A. Newman, Donna K. Rankin-Parobek 2017-11-07
8183869 Circuit interrupter with continuous self-testing feature James A. Porter, Roger M. Bradley 2012-05-22
RE42866 Ground fault circuit interrupter with enhanced radio frequency interference suppression Eugene Shafir, John Libretto 2011-10-25
7990663 Detecting and sensing actuation in a circuit interrupting device William R. Ziegler, James Richter, Benjamin Moadel, Michael Kamor, James A. Porter +1 more 2011-08-02
7889466 Fault circuit interrupter with bi-directional sensing Steve Campolo, Mario Angelides 2011-02-15
7813091 Leakage current detector interrupter with continuous duty relay Roger M. Bradley, Thomas M. Keating 2010-10-12
7737809 Circuit interrupting device and system utilizing bridge contact mechanism and reset lockout Frantz Germain, James Richter, David Herzfeld, Armando Calixto, Stephen Stewart 2010-06-15
7697252 Overvoltage device with enhanced surge suppression Roger M. Bradley, John J. Power 2010-04-13
7542252 Circuit interrupting device having integrated enhanced RFI suppression Eugene Shafir, Mario Angelides, Roger M. Bradley 2009-06-02
7375935 Ground fault circuit interrupter with enhanced radio frequency interference suppression Eugene Shafir, John Libretto 2008-05-20
7196886 Reverse wiring detect in circuit interrupting devices Steve Campolo 2007-03-27
7164563 Circuit interrupting device line load reversal sensing system Bernard Gershen 2007-01-16
7098761 Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device Frantz Germain, Stephen Stewart, Roger M. Bradley, Nichalas Disalvo, William R. Ziegler 2006-08-29
7082021 Circuit interrupter with improved surge suppression Eugene Shafir 2006-07-25
7049911 Circuit interrupting device and system utilizing electromechanical reset Frantz Germain, James Richter, David Herzfeld, Armando Calixto, Stephen Stewart 2006-05-23
7042688 Neutral switch test mechanism for a circuit interrupter James Richter, Gerald N. King 2006-05-09
7012500 GFCI with enhanced surge suppression Roger M. Bradley, John J. Power 2006-03-14
6937452 Reverse wiring detect in circuit interrupting devices Steve Campolo 2005-08-30
6908716 Disposable hard mask for photomask plasma etching 2005-06-21
6900972 Circuit interrupter with improved surge suppression Eugene Shafir 2005-05-31
6830943 Thin film CMOS calibration standard having protective cover layer Wai Lo 2004-12-14
6828886 Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device Frantz Germain, Stephen Stewart, Roger M. Bradley, Nichalas Disalvo, William R. Ziegler 2004-12-07
6749974 Disposable hard mask for photomask plasma etching 2004-06-15
6682861 Disposable hard mask for phase shift photomask plasma etching 2004-01-27