Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DY

David H. Yao — 2 Patents

IBM: 2 patents #32,839 of 70,183Top 50%
Saint Johnsbury Center, VT: #37 of 89 inventorsTop 45%
Vermont: #2,192 of 4,968 inventorsTop 45%
Overall (All Time): #2,209,629 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6420263 Method for controlling extrusions in aluminum metal lines and the device formed therefrom Roger W. Cheek, George A. Dunbar, III, Robert M. Geffken, William J. Murphy, Prabhat Tiwari 2002-07-16
6339022 Method of annealing copper metallurgy Arne Ballantine, Edward C. Cooney, III, George A. Dunbar, III, Cheryl G. Faltermeier, Jeffrey D. Gilbert +9 more 2002-01-15