DS

David H. Sorenson

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,906,686 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4939679 Recalibrating an elevator load measuring system George A. L. David 1990-07-03