ZL

Zhi-Zhong Liang

📍 Toronto, CA: #74 of 401 inventorsTop 20%
Overall (2003): #82,742 of 273,478Top 35%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6579921 Modified bituminous composition for roof membranes Yan Zhang 2003-06-17