Inventor
YUN JUSHIK
US26 patents
⚠️ This page may combine multiple inventors who share the name “YUN JUSHIK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
15 patentsUS7912333B2Mar 22, 2011
Dual conductor fiber optic cable
SCHLUMBERGER TECHNOLOGY CORP19 citations90
US10087717B2Oct 2, 2018
Dual use cable with fiber optics for use in wellbore operations
SCHLUMBERGER TECHNOLOGY CORP8 citations81
US11387014B2Jul 12, 2022
Torque-balanced, gas-sealed wireline cables
SCHLUMBERGER TECHNOLOGY CORP6 citations74
US10249409B2Apr 2, 2019
Coated conductors
SCHLUMBERGER TECHNOLOGY CORP2 citations73
US10443339B2Oct 15, 2019
Elastomeric materials
SCHLUMBERGER TECHNOLOGY CORP6 citations71
US11158442B2Oct 26, 2021
Manufacturing techniques for a jacketed metal line
SCHLUMBERGER TECHNOLOGY CORP0 citations62
US12078035B2Sep 3, 2024
Elastomer alloy for intelligent sand management
SCHLUMBERGER TECHNOLOGY CORP0 citations60
US12559664B2Feb 24, 2026
Chemical compositions for geothermal well stimulation
SCHLUMBERGER TECHNOLOGY CORP0 citations59
US12590513B2Mar 31, 2026
Sand screen with a non-woven fiber polymer filter
SCHLUMBERGER TECHNOLOGY CORP0 citations56
US12398614B2Aug 26, 2025
High performance fluoroelastomer bonded seal for downhole applications
SCHLUMBERGER TECHNOLOGY CORP0 citations56
US11927082B2Mar 12, 2024
Non-metallic compliant sand control screen
SCHLUMBERGER TECHNOLOGY CORP0 citations56
US11156258B2Oct 26, 2021
Reactive super-elastic composite oilfield components
SCHLUMBERGER TECHNOLOGY CORP0 citations52
US10037836B2Jul 31, 2018
Slickline manufacturing techniques
SCHLUMBERGER TECHNOLOGY CORP0 citations51
US9496075B2Nov 15, 2016
Wireline cables not requiring seasoning
SCHLUMBERGER TECHNOLOGY CORP1 citations51
US9767938B2Sep 19, 2017
Cables and methods of making cables
SCHLUMBERGER TECHNOLOGY CORP0 citations40
VARKEY JOSEPH
7 patentsUS9412492B2Aug 9, 2016
Torque-balanced, gas-sealed wireline cables
VARKEY JOSEPH11 citations84
US8901425B2Dec 2, 2014
Wireline cables not requiring seasoning
VARKEY JOSEPH5 citations83
US8863830B2Oct 21, 2014
Pressure control device for wireline cables and method
VARKEY JOSEPH7 citations83
US9368260B2Jun 14, 2016
Cable or cable portion with a stop layer
VARKEY JOSEPH16 citations79
US8726980B2May 20, 2014
Permanent cable for submersible pumps in oil well applications
VARKEY JOSEPH5 citations70
US8913863B2Dec 16, 2014
Reduced nylon hydrocarbon application cable
VARKEY JOSEPH1 citations52
US9248473B2Feb 2, 2016
Polymer-bonded metallic elements used as strength members, and/or power or data carriers in oilfield cables
VARKEY JOSEPH1 citations48