Inventor
TRACEY MICHAEL
US10 patents
⚠️ This page may combine multiple inventors who share the name “TRACEY MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
3 patentsUS7650970B2Jan 26, 2010
Elevator door lock sensor device including proximity sensor elements in a selected geometric pattern
OTIS ELEVATOR CO16 citations83
US7543686B2Jun 9, 2009
Elevator with rollers having selectively variable hardness
OTIS ELEVATOR CO13 citations79
US12378095B2Aug 5, 2025
System and method of unlocking and opening multiple panel elevator doors
OTIS ELEVATOR CO0 citations55