Inventor
SIKSHIN CHEONG
KR3 patents
Patents
3 patentsUS7987947B2Aug 2, 2011
Call indicator provided near elevator car currently assigned to the call
OTIS ELEVATOR CO21 citations91
US7784588B2Aug 31, 2010
Calls assigned to one of two cars in a hoistway to minimize delay imposed on either car
OTIS ELEVATOR CO10 citations82
US7650967B2Jan 26, 2010
Communicating to elevator passengers re car movement to pit or overhead
OTIS ELEVATOR CO10 citations82