Inventor · disambiguated record
Vijay Kumar Keerthivasan
Also filed as: KEERTHIVASAN VIJAY KUMAR
8 granted patents·48 citations·filing 2013–2024
80Inventor score
Technology areasE21B
Files withHALLIBURTON ENERGY SERVICES INC5GRANT PRIDECO INC1INTERWELL NORWAY AS1NAT OILWELL VARCO NORWAY AS1
Top patents by PatentIndex Score
8 records- 0193US10392910B2Multi-zone actuation system using wellbore dartsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Aug 27, 2019·32 cites·20 claims
- 0279US9353600B2Resettable remote and manual actuated well toolHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted May 31, 2016·11 cites·22 claims
- 0376US9835004B2Multi-zone actuation system using wellbore dartsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Dec 5, 2017·5 cites·22 claims
- 0450US12270273B1Stinger for insertion into a polished bore receptacle, production tubing assembly including a stinger, and polished bore receptacle and method for installing production tubing in a wellINTERWELL NORWAY AS·Filed 2024·Granted Apr 8, 2025·0 cites·10 claims
- 0543US9388666B2Locking mechanism for downhole positioning of sleevesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jul 12, 2016·0 cites·9 claims
- 0642US10161214B2Off-set tubing string segments for selective location of downhole toolsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Dec 25, 2018·0 cites·22 claims
- 0739US12352137B2Liner hanger running toolNAT OILWELL VARCO NORWAY AS·Filed 2022·Granted Jul 8, 2025·0 cites·23 claims
- 0832US12392220B2Valve and method for multi-stage well stimulationGRANT PRIDECO INC·Filed 2020·Granted Aug 19, 2025·0 cites·14 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →