DH

David M. Hughes

OE Otis Elevator: 1 patents #39 of 115Top 35%
📍 East Hampton, CT: #3 of 8 inventorsTop 40%
🗺 Connecticut: #560 of 2,265 inventorsTop 25%
Overall (1994): #145,477 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5357064 Elevator hall call cross-cancellation device Robert C. Boyce, Brian D. Ellsworth, Bertram F. Kupersmith, Paul A. Stranieri 1994-10-18