Inventor
DAHLGREN SCOTT S
US18 patents
⚠️ This page may combine multiple inventors who share the name “DAHLGREN SCOTT S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALL DAVID R
10 patentsUS7198119B1Apr 3, 2007
Hydraulic drill bit assembly
HALL DAVID R93 citations97
US7938203B1May 10, 2011
Downhole centrifugal drilling fluid separator
HALL DAVID R16 citations92
US7328755B2Feb 12, 2008
Hydraulic drill bit assembly
HALL DAVID R29 citations92
US8333254B2Dec 18, 2012
Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling
HALL DAVID R14 citations84
US7377315B2May 27, 2008
Complaint covering of a downhole component
HALL DAVID R7 citations74
US8421287B2Apr 16, 2013
Downhole torodial generator with central passage
HALL DAVID R6 citations73
US8353354B2Jan 15, 2013
Crawler system for an earth boring system
HALL DAVID R4 citations63
US8281880B2Oct 9, 2012
Expandable tool for an earth boring system
HALL DAVID R4 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
SCHLUMBERGER TECHNOLOGY CORP
6 patentsUS10711833B2Jul 14, 2020
Hard bearing attachment and alignment systems, apparatus, and techniques
SCHLUMBERGER TECHNOLOGY CORP24 citations93
US10683895B2Jun 16, 2020
Systems and devices using hard bearings
SCHLUMBERGER TECHNOLOGY CORP29 citations93
US10030704B2Jul 24, 2018
Systems and devices using hard bearings
SCHLUMBERGER TECHNOLOGY CORP5 citations82
US10731420B2Aug 4, 2020
Indexing drill bit
SCHLUMBERGER TECHNOLOGY CORP7 citations81
US12116844B2Oct 15, 2024
Tiling for downhole tool
SCHLUMBERGER TECHNOLOGY CORP0 citations62
US12270477B2Apr 8, 2025
Needle for a choke valve assembly
SCHLUMBERGER TECHNOLOGY CORP0 citations59