Inventor
RIDGWAY DOUGLAS
CA12 patents
⚠️ This page may combine multiple inventors who share the name “RIDGWAY DOUGLAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCIENT DRILLING INT INC
9 patentsUS11243323B2Feb 8, 2022
Buried wellbore location from surface magnetic measurements
SCIENT DRILLING INT INC2 citations71
US10494916B2Dec 3, 2019
Sub-surface electromagnetic telemetry systems and methods
SCIENT DRILLING INT INC5 citations68
US11860329B2Jan 2, 2024
Buried wellbore location from surface magnetic measurements
SCIENT DRILLING INT INC0 citations60
US11086043B2Aug 10, 2021
Passive magnetic ranging
SCIENT DRILLING INT INC0 citations60
US12188351B2Jan 7, 2025
Active magnetic ranging while drilling
SCIENT DRILLING INT INC0 citations54
US11761264B2Sep 19, 2023
Active magnetic ranging while drilling
SCIENT DRILLING INT INC0 citations54
US11634950B2Apr 25, 2023
Active magnetic ranging while drilling
SCIENT DRILLING INT INC0 citations54
US10837273B2Nov 17, 2020
Surface coil for wellbore positioning
SCIENT DRILLING INT INC0 citations50
US10422198B2Sep 24, 2019
Magnetic ranging from behind a magnetic shield
SCIENT DRILLING INT INC0 citations50
APPLIED TECH ASSOCIATES INC
3 patentsUS10458227B2Oct 29, 2019
Well completion with single wire guidance system
APPLIED TECH ASSOCIATES INC0 citations48
US10041345B2Aug 7, 2018
Well completion with single wire guidance system
APPLIED TECH ASSOCIATES INC1 citations48
US9938819B2Apr 10, 2018
Reducing or preventing dissipation of electrical current and associated magnetic signal in a wellbore
APPLIED TECH ASSOCIATES INC0 citations48