WT

William J. Tefft

TD Tdw Delaware: 2 patents #44 of 133Top 35%
Overall (All Time): #1,815,683 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11719341 Vessel closure device with fail safe failure detection means Joshua D. Mitchell, William C. Keenan, Joseph Alan Morton, Aaron M. Ritchie, Robert Fulton Hendricks +1 more 2023-08-08
5770006 Butt fusion machine for manufacturing full size segemented pipe turns Bill D. Andrew, Paul Hatch, Richard L. Goswick 1998-06-23