DC

Donald Ian Carruthers

GI Gyrodata, Incorporated: 3 patents #11 of 28Top 40%
Overall (All Time): #1,478,250 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10495777 System and method for wellbore surveying using directional gamma detection Nigel John Dennis Kilshaw, Peter Allen, Walter Edward Somerville Davey 2019-12-03
9977145 System and method for wellbore surveying using directional gamma detection Nigel John Dennis Kilshaw, Peter Allen, Walter Edward Somerville Davey 2018-05-22
8579044 Bending of a shaft of a steerable borehole drilling tool Peter Allen, Nigel John Dennis Kilshaw, Walter Edward Somerville Davey, Jonathan C. Long 2013-11-12