Inventor
WILLIAMS FRED G
US15 patents
⚠️ This page may combine multiple inventors who share the name “WILLIAMS FRED G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
5 patentsUS5838750ANov 17, 1998
Binary data electronic communication system
OTIS ELEVATOR CO16 citations71
US10691779B2Jun 23, 2020
Service tool credential management
OTIS ELEVATOR CO2 citations69
US10939477B2Mar 2, 2021
Service tool wireless access management
OTIS ELEVATOR CO1 citations60
US10244374B2Mar 26, 2019
Service tool proximity detection
OTIS ELEVATOR CO1 citations58
US10669122B2Jun 2, 2020
Service tool location-based function availability
OTIS ELEVATOR CO0 citations48