AJ

Ashley Bernard Johnson

Schlumberger Technology: 8 patents #4 of 848Top 1%
WS Wellbore Integrity Solutions: 1 patents #1 of 21Top 5%
Overall (2020): #12,204 of 565,922Top 3%
9
Patents 2020

Issued Patents 2020

Patent #TitleCo-InventorsDate
10781640 Rotary cutting tool Jonathan Robert Hird 2020-09-22
10767427 Control of managed pressure drilling Maurice Ringer, Devi Putra, Michalis Frangos, Jakub Jerabek, Kjetil Havre +1 more 2020-09-08
10760364 Milling tool and method Jonathan Robert Hird 2020-09-01
10704332 Downhole rotary cutting tool Jonathan Robert Hird, Gokturk Tunc 2020-07-07
10612309 Reamer Jonathan Robert Hird, Gokturk Tunc 2020-04-07
10584538 Reamer Jonathan Robert Hird, Gokturk Tunc 2020-03-10
10563472 Rotary milling tool 2020-02-18
10550684 Observation of vibration of rotary apparatus Caroline Humphrey, Paul Dickenson, Gokturk Tunc, Michael Paul Barrett 2020-02-04
10533386 Discharge coefficient determination of a managed pressure drilling choke/valve Gary Oddie 2020-01-14