YL

Yiwu Lei

3M: 3 patents #4,214 of 11,543Top 40%
📍 Ottawa, CA: #1,615 of 6,399 inventorsTop 30%
Overall (All Time): #1,227,666 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8540158 Document verification using dynamic document identification framework James E. MacLean 2013-09-24
8485559 Document authentication using template matching with fast masked normalized cross-correlation 2013-07-16
8194933 Identification and verification of an unknown document according to an eigen image process James E. MacLean 2012-06-05
8096584 Document authentication using template matching with fast masked normalized cross-correlation 2012-01-17