Inventor
LUNDGREEN DAVID
US21 patents
⚠️ This page may combine multiple inventors who share the name “LUNDGREEN DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALL DAVID R
16 patentsUS7360610B2Apr 22, 2008
Drill bit assembly for directional drilling
HALL DAVID R77 citations96
US7938203B1May 10, 2011
Downhole centrifugal drilling fluid separator
HALL DAVID R16 citations92
US7559379B2Jul 14, 2009
Downhole steering
HALL DAVID R23 citations92
US7451835B1Nov 18, 2008
Downhole turbine
HALL DAVID R19 citations92
US7434634B1Oct 14, 2008
Downhole turbine
HALL DAVID R39 citations92
US7426968B2Sep 23, 2008
Drill bit assembly with a probe
HALL DAVID R32 citations92
US7506701B2Mar 24, 2009
Drill bit assembly for directional drilling
HALL DAVID R38 citations91
US10196809B2Feb 5, 2019
Modular building component for floor and ceiling with rod-based dimensions
HALL DAVID R15 citations85
US8499857B2Aug 6, 2013
Downhole jack assembly sensor
HALL DAVID R9 citations84
US7650951B1Jan 26, 2010
Resettable actuator for downhole tool
HALL DAVID R7 citations74
US8522897B2Sep 3, 2013
Lead the bit rotary steerable tool
HALL DAVID R6 citations73
US8307919B2Nov 13, 2012
Clutch for a jack element
HALL DAVID R2 citations63
US7984772B1Jul 26, 2011
Downhole centrifugal drilling fluid separator
HALL DAVID R3 citations63
US7980332B1Jul 19, 2011
Downhole centrifugal drilling fluid separator
HALL DAVID R1 citations63
US7669663B1Mar 2, 2010
Resettable actuator for downhole tool
HALL DAVID R3 citations63
US8140259B2Mar 20, 2012
Location device with a gravity measuring device
HALL DAVID R5 citations62
SCHLUMBERGER TECHNOLOGY CORP
5 patentsUS8360174B2Jan 29, 2013
Lead the bit rotary steerable tool
SCHLUMBERGER TECHNOLOGY CORP10 citations84
US8028768B2Oct 4, 2011
Displaceable plug in a tool string filter
SCHLUMBERGER TECHNOLOGY CORP9 citations84
US7866416B2Jan 11, 2011
Clutch for a jack element
SCHLUMBERGER TECHNOLOGY CORP10 citations84
US7900720B2Mar 8, 2011
Downhole drive shaft connection
SCHLUMBERGER TECHNOLOGY CORP12 citations81
US7721826B2May 25, 2010
Downhole jack assembly sensor
SCHLUMBERGER TECHNOLOGY CORP5 citations62