Assignee
MONTGOMERY ELEVATOR
US19 patents
Top patents by PatentIndex Score
US4898263AFeb 6, 1990
Elevator self-diagnostic control system
MONTGOMERY ELEVATOR131 citations92
US5125494AJun 30, 1992
Handrail drive mechanism for a passenger conveyor
MONTGOMERY ELEVATOR35 citations91
US5255771AOct 26, 1993
Combplate safety device
MONTGOMERY ELEVATOR25 citations89
US5224580AJul 6, 1993
Power transmission system for a passenger conveyor
MONTGOMERY ELEVATOR55 citations89
US4875553AOct 24, 1989
Modular elevator cab construction
MONTGOMERY ELEVATOR39 citations89
US4779707AOct 25, 1988
Modular elevator cab construction
MONTGOMERY ELEVATOR37 citations89
US5394961AMar 7, 1995
Safety edge assembly for elevator doorways
MONTGOMERY ELEVATOR22 citations86
US4630026ADec 16, 1986
Elevator position indicating system
MONTGOMERY ELEVATOR24 citations81
US4875552AOct 24, 1989
Modular elevator cab construction
MONTGOMERY ELEVATOR22 citations79
US4246983AJan 27, 1981
Elevator control
MONTGOMERY ELEVATOR20 citations74
US4364203ADec 21, 1982
Modular sheet metal door structure
MONTGOMERY ELEVATOR13 citations71
US4313525AFeb 2, 1982
Car door safety interlock
MONTGOMERY ELEVATOR26 citations69
US5277505AJan 11, 1994
Adhesive attaching system
MONTGOMERY ELEVATOR5 citations68
US5115900AMay 26, 1992
Handrail air cushion
MONTGOMERY ELEVATOR18 citations68
US4064667ADec 27, 1977
Decorative jamb structure for elevator entranceways
MONTGOMERY ELEVATOR8 citations68
US4785916ANov 22, 1988
Call registration and acknowledgement system for an elevator and method of testing such system
MONTGOMERY ELEVATOR8 citations58
US5205391AApr 27, 1993
Adhesive attaching system
MONTGOMERY ELEVATOR4 citations57
US4219979ASep 2, 1980
Decorative jamb structure for elevator entranceways
MONTGOMERY ELEVATOR6 citations51
US4151381AApr 24, 1979
Reversal stop device
MONTGOMERY ELEVATOR6 citations46