Membership
Tour
Register
Log in
Daniel G. Opoku
Follow
Person
Montreal, CA
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
System and method for reducing belt noise
Patent number
10,336,581
Issue date
Jul 2, 2019
Otis Elevator Company
David R. Polak
D07 - ROPES CABLES OTHER THAN ELECTRIC
Information
Patent Grant
Elevator ceiling ventilation cavity
Patent number
8,500,525
Issue date
Aug 6, 2013
Otis Elevator Company
Daniel G. Opoku
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Information
Patent Application
System And Method For Reducing Belt Noise
Publication number
20130292211
Publication date
Nov 7, 2013
David R. Polak
D07 - ROPES CABLES OTHER THAN ELECTRIC