SC

Siao C. L. Chang

IBM: 3 patents #26,272 of 70,183Top 40%
📍 Singapore, SG: #2,988 of 13,971 inventorsTop 25%
Overall (All Time): #1,493,329 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9852621 Self-service crossing aid for pedestrians — 2017-12-26
9659490 Self-service crossing aid for pedestrians — 2017-05-23
9524639 Self-service crossing aid for pedestrians — 2016-12-20