Assignee
WELLTEC AS
DK67 patents
Top patents by PatentIndex Score
US9458687B2Oct 4, 2016
Stimulation method
WELLTEC AS37 citations94
US9518439B2Dec 13, 2016
Annular barrier with a self-actuated device
WELLTEC AS7 citations84
US10316602B2Jun 11, 2019
Downhole machining system and method
WELLTEC AS8 citations83
US12037858B2Jul 16, 2024
Downhole positive displacement pump
WELLTEC AS4 citations75
US10267144B2Apr 23, 2019
Downhole sensor system
WELLTEC AS2 citations73
US9835023B2Dec 5, 2017
Barrier testing method
WELLTEC AS4 citations73
US9803465B2Oct 31, 2017
Pressure integrity testing system
WELLTEC AS2 citations73
US9366107B2Jun 14, 2016
Annular barrier with an expansion detection device
WELLTEC AS4 citations73
US9359869B2Jun 7, 2016
Stimulation method
WELLTEC AS3 citations73
US11299948B2Apr 12, 2022
Downhole method for removal of tubular metal structure
WELLTEC AS2 citations72
US10844682B2Nov 24, 2020
Workover tool string
WELLTEC AS2 citations72
US10724328B2Jul 28, 2020
Downhole tool string for plug and abandonment by cutting
WELLTEC AS3 citations72
US9963952B2May 8, 2018
Annular barrier with a seal
WELLTEC AS3 citations72
US9926773B2Mar 27, 2018
Expandable drop device
WELLTEC AS5 citations72
US11542810B2Jan 3, 2023
Downhole tool for determining laterals
WELLTEC AS4 citations70
US9695658B2Jul 4, 2017
Pulling tool
WELLTEC AS4 citations70
US10337323B2Jul 2, 2019
Dual function downhole tool
WELLTEC AS3 citations69
US10100621B2Oct 16, 2018
Downhole expandable tubular
WELLTEC AS4 citations68
US10526845B2Jan 7, 2020
Downhole tool string
WELLTEC AS3 citations67
US9957778B2May 1, 2018
Downhole wireline cleaning tool
WELLTEC AS3 citations67
US10408017B2Sep 10, 2019
Downhole flow device
WELLTEC AS2 citations64
US12435587B2Oct 7, 2025
Wireline expansion tool
WELLTEC AS1 citations63
US12312886B2May 27, 2025
Downhole tool string
WELLTEC AS1 citations63
US11859459B2Jan 2, 2024
Downhole tool
WELLTEC AS0 citations63
US11530589B2Dec 20, 2022
Downhole tool
WELLTEC AS0 citations63
US11002124B2May 11, 2021
Downhole device and downhole system
WELLTEC AS1 citations63
US9404335B2Aug 2, 2016
Annular barrier system with flow lines
WELLTEC AS2 citations63
US10557312B2Feb 11, 2020
Downhole operational tool
WELLTEC AS1 citations61
US10180044B2Jan 15, 2019
Downhole wireless transfer system
WELLTEC AS1 citations60
US7588084B2Sep 15, 2009
Method for releasing cables from an attached well tool and apparatus for exercising the method
WELLTEC AS3 citations60
US10851604B2Dec 1, 2020
Downhole wireline machining tool string
WELLTEC AS1 citations59
US12428921B2Sep 30, 2025
Downhole wireline tool
WELLTEC AS0 citations53
US11414935B2Aug 16, 2022
Intervention system and method for operating an intervention system
WELLTEC AS0 citations53
US12590499B2Mar 31, 2026
Downhole tubing intervention tool
WELLTEC AS0 citations52
US11643897B2May 9, 2023
Downhole line separation tool
WELLTEC AS0 citations52
US11286768B2Mar 29, 2022
Downhole plug and abandonment system
WELLTEC AS0 citations52
US9970248B2May 15, 2018
Downhole system and method for fastening upper and lower casings via expandable metal sleeve
WELLTEC AS1 citations52
US12116854B2Oct 15, 2024
Downhole self-propelling wireline tool
WELLTEC AS0 citations51
US12044084B2Jul 23, 2024
Hydraulically driven downhole self-propelling wireline tool string
WELLTEC AS0 citations51
US11982152B2May 14, 2024
Wireline plug system
WELLTEC AS0 citations51
US11624256B2Apr 11, 2023
Downhole packer assembly
WELLTEC AS0 citations51
US11261690B2Mar 1, 2022
Downhole method and system for providing zonal isolation with annular barrier expanded from within and through well tubular metal structure
WELLTEC AS0 citations51
US11098544B2Aug 24, 2021
Downhole tool with long projecting extension
WELLTEC AS0 citations51
US9523257B2Dec 20, 2016
Downhole tubular system and assembly for sealing an opening
WELLTEC AS1 citations51
US10100598B2Oct 16, 2018
Downhole expandable metal tubular
WELLTEC AS1 citations50
US9752401B2Sep 5, 2017
Setting tool
WELLTEC AS1 citations50
US9683425B2Jun 20, 2017
Downhole injection tool
WELLTEC AS1 citations50
US12571273B2Mar 10, 2026
Downhole radial force tool assembly
WELLTEC AS0 citations49
US10641054B2May 5, 2020
Retrieval system
WELLTEC AS0 citations48
US10435977B2Oct 8, 2019
Downhole stroking tool
WELLTEC AS0 citations48
Showing the top 50 of 67 patents by PatentIndex Score.