DD

David Trevor Darnell

CI Clearwater International: 1 patents #8 of 28Top 30%
📍 Yarmouth, GB: #1 of 1 inventorsTop 100%
Overall (2011): #324,677 of 364,097Top 90%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8028755 Quick lock wireline valve/blow-out preventor and methods for making and using same Robert Andrew Hunt 2011-10-04