Sihua Ling

OEOtis Elevator: 1 patents #966 of 1,840Top 55%

Overall (All Time): #2,523,265 of 4,157,543Top 65%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D1039409	Escalator smart traffic flow lighting device	Lilong Shi, QingXi Cai, Shunqiang Zhou, Denghui Zhang	2024-08-20