RL

Robert Henry Lefevre

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #1,929,873 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10207895 Elevator emergency power feeder balancing James M. Collins 2019-02-19
5975621 Vehicle hood shield 1999-11-02