Inventor · disambiguated record
Walter S. Dillard
Also filed as: DILLARD WALTER S · DILLARD WALTER SCOTT
12 granted patents·1 pending application·88 citations·filing 1999–2021
89Inventor score
Files withWEATHERFORD TECH HOLDINGS LLC9CAMCO INT2DILLARD WALTER SCOTT1WEATHERFORD TECH HOLDING LLC1
Top patents by PatentIndex Score
13 records- 0191US10227838B2Drilling system and method having flow measurement chokeWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Mar 12, 2019·8 cites·25 claims
- 0288US10012044B2Annular isolation device for managed pressure drillingWEATHERFORD TECH HOLDING LLC·Filed 2015·Granted Jul 3, 2018·22 cites·22 claims
- 0387US10598527B2Differential flow measurement with Coriolis flowmeterWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted Mar 24, 2020·8 cites·25 claims
- 0486US11702896B2Flow measurement apparatus and associated systems and methodsWEATHERFORD TECH HOLDINGS LLC·Filed 2021·Granted Jul 18, 2023·2 cites·32 claims
- 0578US11131156B2Managed pressure control system with variable built-in accuracyWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Sep 28, 2021·3 cites·24 claims
- 0676US10094186B2Controlled pressure drilling system with flow measurement and well controlWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Oct 9, 2018·3 cites·40 claims
- 0772US10107052B2Control of hydraulic power flowrate for managed pressure drillingWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Oct 23, 2018·2 cites·21 claims
- 0865US10094185B2Coriolis flow meter having flow tube with equalized pressure differentialWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Oct 9, 2018·1 cites·32 claims
- 0958US11988064B2Managed pressure drilling control system with continuously variable transmissionWEATHERFORD TECH HOLDINGS LLC·Filed 2021·Granted May 21, 2024·0 cites·21 claims
- 1052US6095264ARolling cutter drill bit with stabilized insert holes and method for making a rolling cutter drill bit with stabilized insert holesCAMCO INT·Filed 1999·Granted Aug 1, 2000·30 cites·14 claims
- 1141US6138778ARock bit lubricant relief valveCAMCO INT·Filed 1999·Granted Oct 31, 2000·9 cites·9 claims
- 1238US10174571B2Control of multiple hydraulic chokes in managed pressure drillingWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Granted Jan 8, 2019·0 cites·29 claims
- 1336US2008006447A1Roller cone drill bit that includes components with planar reference surfaces for gauging and inspectionDILLARD WALTER SCOTT·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →