Inventor · disambiguated record
Ramamurthy Narasimhan
Also filed as: Narasimhan Ramamurthy
10 granted patents·3 pending applications·13 citations·filing 2017–2025
82Inventor score
Top patents by PatentIndex Score
13 records- 0187US11300121B2Downhole pump sand filtering snaresHARBISON FISCHER INC·Filed 2020·Granted Apr 12, 2022·7 cites·19 claims
- 0280US11834916B2Shear coupling for sucker rod stringHARBISON FISCHER INC·Filed 2021·Granted Dec 5, 2023·2 cites·21 claims
- 0380US2025361789A1Valve assemblies, valve assemblies for use with downhole components and related methodsCHAMPIONX LLC·Filed 2025·Application pending·0 cites
- 0479US11549316B2Gear rod rotator systems and related systems, sensors, and methodsNORRIS RODS INC·Filed 2022·Granted Jan 10, 2023·1 cites·18 claims
- 0578US12460630B2Valve assemblies, valve assemblies for use with downhole pumps and related methodsCHAMPIONX LLC·Filed 2022·Granted Nov 4, 2025·1 cites·20 claims
- 0670US2024376885A1Valve assemblies, valve assemblies for use in plunger applications and related methodsCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 0768US11268331B2Gear rod rotator systemsNORRIS RODS INC·Filed 2020·Granted Mar 8, 2022·1 cites·20 claims
- 0863US10648246B2Gear rod rotator systemsNORRIS RODS INC·Filed 2019·Granted May 12, 2020·1 cites·24 claims
- 0962US2025172055A1Methods of forming and restricting fluid flow with a valve assemblyCHAMPIONX LLC·Filed 2025·Application pending·0 cites
- 1055US12209484B2Ball check-valve for linear reciprocating downhole pumpsCHAMPIONX LLC·Filed 2021·Granted Jan 28, 2025·0 cites·28 claims
- 1145US12497872B2Single pilot fluid line actuation gas lift valve and related systems and methodsCHAMPIONX LLC·Filed 2022·Granted Dec 16, 2025·0 cites·22 claims
- 1238US10563489B2Downhole oil well jet pump device with memory production logging tool and related methods of usePCS FERGUSON INC·Filed 2017·Granted Feb 18, 2020·0 cites·24 claims
- 1337US10619441B2Wellhead assembly with integrated tubing rotatorOIL LIFT TECH INC·Filed 2018·Granted Apr 14, 2020·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →