Inventor

PIETRZYKOWSKI CHRIS

US3 patents

⚠️ This page may combine multiple inventors who share the name “PIETRZYKOWSKI CHRIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OTIS ELEVATOR CO

2 patents

US7540357B2Jun 2, 2009

Position reference system for elevators

OTIS ELEVATOR CO18 citations90

US6186281B1Feb 13, 2001

Remote storage and reset of elevator overspeed switch

OTIS ELEVATOR CO16 citations82

CARRIER CORP

1 patent

US11054166B2Jul 6, 2021

Environmental conditioning system and method for conditioning environment of occupiable region

CARRIER CORP0 citations53