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USPTO Patent Rankings Data through Sept 30, 2025
WC

Wai Hoe Chan

Singapore, SG: #6,661 of 13,971 inventorsTop 50%
Overall (All Time): #2,944,272 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9645112 Auto-cleaning and auto-zeroing system used with a photo-ionization detector 2017-05-09