Inventor
PEPIN RONALD R
US4 patents
Patents
4 patentsUS5817993AOct 6, 1998
Monitoring of elevator door reversal data
OTIS ELEVATOR CO58 citations93
US6484125B1Nov 19, 2002
Service information derived from elevator operational parameters
OTIS ELEVATOR CO24 citations88
US5760350AJun 2, 1998
Monitoring of elevator door performance
OTIS ELEVATOR CO45 citations88
US5398782AMar 21, 1995
Remote monitoring system with variable period communication check
OTIS ELEVATOR CO43 citations86