HX

HengFeng Xie

OE Otis Elevator: 2 patents #650 of 1,840Top 40%
Overall (All Time): #1,946,603 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9919896 Detection method for elevator brake moment Shan Li, Xiaolin Wang 2018-03-20
9890016 Position recovery via dummy landing patterns Uwe Schoenauer, Donald F. Cominelli, Shan Li 2018-02-13