DH

Douglas D. Hamilton

ES Elevator Safety: 1 patents #3 of 5Top 60%
📍 Montréal, CA: #189 of 811 inventorsTop 25%
Overall (2022): #471,122 of 548,613Top 90%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11407615 Elevator guide Andrew James Laughton, Jeffrey Lachica Geroso, Tyler Stine, Antonio Alexander Witt 2022-08-09