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Inventor

SIEWERT BRYAN ROBERT

US10 patents
⚠️ This page may combine multiple inventors who share the name “SIEWERT BRYAN ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OTIS ELEVATOR CO

6 patents
US7878306B2Feb 1, 2011

Elevator system without a moving counterweight

OTIS ELEVATOR CO8 citations83
US7650970B2Jan 26, 2010

Elevator door lock sensor device including proximity sensor elements in a selected geometric pattern

OTIS ELEVATOR CO16 citations83
US11001477B2May 11, 2021

Elevator linear propulsion system with cooling device

OTIS ELEVATOR CO1 citations62
US10865071B2Dec 15, 2020

Configurable multicar elevator system

OTIS ELEVATOR CO1 citations61
US10189679B2Jan 29, 2019

Elevator car power supply

OTIS ELEVATOR CO1 citations61
US7823699B2Nov 2, 2010

Electromagnetically operated elevator door lock

OTIS ELEVATOR CO6 citations60

SIEWERT BRYAN ROBERT

2 patents
US9849318B2Dec 26, 2017

Fire suppression system with variable dual use of gas source

SIEWERT BRYAN ROBERT0 citations45
US9907986B2Mar 6, 2018

Fire suppression system with dual use of gas source

SIEWERT BRYAN ROBERT0 citations44

MARIOFF CORP OY

1 patent
US9849321B2Dec 26, 2017

Concealed sprinkler activation

MARIOFF CORP OY9 citations78

GIERAS JACEK F

1 patent
US8678140B2Mar 25, 2014

Electromagnet and elevator door coupler

GIERAS JACEK F1 citations51