Inventor
O'SEEP GREGORY M
US6 patents
Patents
6 patentsUS10611600B2Apr 7, 2020
Hydraulic elevator system with position or speed based valve control
OTIS ELEVATOR CO3 citations65
US11377323B2Jul 5, 2022
Retrofitting an elevator machine with primary and secondary braking
OTIS ELEVATOR CO0 citations59
US11299374B2Apr 12, 2022
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
OTIS ELEVATOR CO0 citations59
US10618775B2Apr 14, 2020
Retrofitting an elevator machine with primary and secondary braking
OTIS ELEVATOR CO1 citations59
US11807493B1Nov 7, 2023
Retrofitted hoist machine
OTIS ELEVATOR CO1 citations58
US10737908B2Aug 11, 2020
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
OTIS ELEVATOR CO0 citations49