Inventor
TULLOCH RORY MCCRAE
GB18 patents
⚠️ This page may combine multiple inventors who share the name “TULLOCH RORY MCCRAE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
5 patentsUS7337847B2Mar 4, 2008
Multi-cycle downhole apparatus
SMITH INTERNATIONAL83 citations96
US6293342B1Sep 25, 2001
Bypass valve closing means
SMITH INTERNATIONAL64 citations96
US7357198B2Apr 15, 2008
Downhole apparatus
SMITH INTERNATIONAL37 citations90
US7506704B2Mar 24, 2009
Downhole swivel joint
SMITH INTERNATIONAL10 citations84
US7857058B2Dec 28, 2010
Downhole swivel joint assembly and method of using said swivel joint assembly
SMITH INTERNATIONAL6 citations63
NOV DOWNHOLE EURASIA LTD
4 patentsUS9970264B2May 15, 2018
Downhole actuation apparatus and associated methods
NOV DOWNHOLE EURASIA LTD7 citations83
US10081984B2Sep 25, 2018
Downhole motor, drill string provided with such a motor and method of releasing a stuck drill bit attached to such a motor
NOV DOWNHOLE EURASIA LTD2 citations72
US9909367B2Mar 6, 2018
Downhole tool with rotational drive coupling and associated methods
NOV DOWNHOLE EURASIA LTD1 citations51
US11499374B2Nov 15, 2022
Downhole devices and associated apparatus and methods
NOV DOWNHOLE EURASIA LTD0 citations47