GT

Gilbert S. Tyner

SI Smith International: 1 patents #390 of 708Top 60%
Overall (All Time): #3,765,375 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5394952 Core cutting rock bit Roger Johns, Gary R. Portwood, Charles R. Muren 1995-03-07