DH

Dennis Hanvey

OE Otis Elevator: 1 patents #99 of 278Top 40%
Overall (2020): #492,931 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Patent #TitleCo-InventorsDate
10538412 Brake operation management in elevators Amir Lotfi, Randall Keith Roberts, Ronnie E. Thebeau, Michael Garfinkel, Edward Piedra +1 more 2020-01-21