Siao C. L. Chang

IBM: 2 patents #3,254 of 10,852Top 30%

📍 Singapore, SG: #168 of 1,548 inventorsTop 15%

Overall (2017): #105,412 of 506,227Top 25%

Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
9852621	Self-service crossing aid for pedestrians	—	2017-12-26
9659490	Self-service crossing aid for pedestrians	—	2017-05-23