Inventor
LOMBARDI ALFRED J
US45 patents
⚠️ This page may combine multiple inventors who share the name “LOMBARDI ALFRED J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEVITON MANUFACTURING CO
40 patentsUS5383084AJan 17, 1995
Circuit analyzing system
LEVITON MANUFACTURING CO59 citations96
USD576566SSep 9, 2008
Dimmer switch
LEVITON MANUFACTURING CO83 citations95
US8018166B2Sep 13, 2011
Lighting control system and three way occupancy sensor
LEVITON MANUFACTURING CO28 citations92
US7211798B2May 1, 2007
Occupancy wall sensor
LEVITON MANUFACTURING CO30 citations92
USD523824SJun 27, 2006
Combined rocker on-off switch and tactile dimmer switch
LEVITON MANUFACTURING CO28 citations92
US7560696B2Jul 14, 2009
Adjustable sensor
LEVITON MANUFACTURING CO27 citations91
USD479205SSep 2, 2003
Rotary dimmer and fan speed control
LEVITON MANUFACTURING CO20 citations90
USD609650SFeb 9, 2010
Dimmer switch
LEVITON MANUFACTURING CO36 citations89
US5619081AApr 8, 1997
Asymmetrical AC trigger simulation
LEVITON MANUFACTURING CO27 citations89
USD603809SNov 10, 2009
Toggle wheel dimmer switch
LEVITON MANUFACTURING CO30 citations88
US11818582B2Nov 14, 2023
Communication enabled circuit breakers and circuit breaker panels
LEVITON MANUFACTURING CO4 citations86
US11606695B2Mar 14, 2023
Communication enabled circuit breakers
LEVITON MANUFACTURING CO5 citations86
US8386661B2Feb 26, 2013
Communication network for controlling devices
LEVITON MANUFACTURING CO15 citations84
USD523402SJun 20, 2006
Combined tactile on-off switch and thumbwheel dimmer switch
LEVITON MANUFACTURING CO11 citations84
US7242563B2Jul 10, 2007
Reverse phase control power switching circuit with overload protection
LEVITON MANUFACTURING CO16 citations83
US11228912B2Jan 18, 2022
Communication enabled circuit breakers
LEVITON MANUFACTURING CO3 citations82
USD634048SMar 8, 2011
Lampholder with occupancy sensor
LEVITON MANUFACTURING CO8 citations82
USD477286SJul 15, 2003
Dual rotary dimmer and fan speed control
LEVITON MANUFACTURING CO16 citations82
US6289404B1Sep 11, 2001
Apparatus for and method of placing a node in an unconfigured state
LEVITON MANUFACTURING CO16 citations82
US5729421AMar 17, 1998
Circuit analyzing system
LEVITON MANUFACTURING CO15 citations82
US5499155AMar 12, 1996
Circuit analyzing system
LEVITON MANUFACTURING CO14 citations82
USD576565SSep 9, 2008
Dimmer switch
LEVITON MANUFACTURING CO13 citations79
US11342152B2May 24, 2022
Circuit breakers incorporating reset lockout mechanisms
LEVITON MANUFACTURING CO4 citations73
US11297506B2Apr 5, 2022
Communication enabled circuit breakers and circuit breaker panels
LEVITON MANUFACTURING CO2 citations73
US10317431B2Jun 11, 2019
Multiple core transformer assembly
LEVITON MANUFACTURING CO2 citations73
USD539759SApr 3, 2007
Combined tactile on-off switch and rocker dimmer switch
LEVITON MANUFACTURING CO8 citations73
USD513607SJan 17, 2006
Combined rocker on-off switch and rocker dimmer switch
LEVITON MANUFACTURING CO8 citations73
USD473851SApr 29, 2003
Rotary dimmer and fan speed control
LEVITON MANUFACTURING CO10 citations71
US6031750AFeb 29, 2000
Constant current supply over a wide range of input voltages
LEVITON MANUFACTURING CO10 citations70
US5854519ADec 29, 1998
Asymmetrical AC trigger simulation
LEVITON MANUFACTURING CO11 citations70
US12520157B2Jan 6, 2026
Communication enabled circuit breakers
LEVITON MANUFACTURING CO0 citations62
US12402009B2Aug 26, 2025
Communication enabled circuit breakers and circuit breaker panels
LEVITON MANUFACTURING CO0 citations62
US12278073B2Apr 15, 2025
Circuit breakers incorporating reset lockout mechanisms
LEVITON MANUFACTURING CO0 citations62
US11545327B2Jan 3, 2023
Circuit breakers incorporating reset lockout mechanisms
LEVITON MANUFACTURING CO0 citations62
USD522465SJun 6, 2006
Combined tactile on-off switch and tactile dimmer switch
LEVITON MANUFACTURING CO4 citations62
USD521944SMay 30, 2006
Combined tactile on-off switch and slide dimmer switch
LEVITON MANUFACTURING CO4 citations62
US12526635B2Jan 13, 2026
Communication enabled circuit breakers
LEVITON MANUFACTURING CO0 citations60
US11638157B2Apr 25, 2023
Communication enabled circuit breakers
LEVITON MANUFACTURING CO0 citations60
US10690700B2Jun 23, 2020
Multiple core transformer assembly
LEVITON MANUFACTURING CO0 citations52
US11974378B2Apr 30, 2024
Methods and arrangements for false trigger prevention
LEVITON MANUFACTURING CO0 citations49