DG

David K. Gentzler

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,644,421 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5881844 Secondary positioning system for elevator car doors Garnett H. Thompson, Richard N. Fargo, Bennie J. Murah, James P. Towey, Michael J. Tracey 1999-03-16