Inventor · disambiguated record
Mark Ellsworth Wassell
Also filed as: WASSELL MARK · WASSELL MARK E · WASSELL MARK ELLSWORTH
36 granted patents·4 pending applications·1,521 citations·filing 1981–2019
98Inventor score
Top patents by PatentIndex Score
40 records- 0199US9696198B2System and method for monitoring and controlling underground drillingAPS TECH INC·Filed 2014·Granted Jul 4, 2017·136 cites·24 claims
- 0297US8684108B2System and method for monitoring and controlling underground drillingTURNER WILLIAM EVANS·Filed 2012·Granted Apr 1, 2014·28 cites·21 claims
- 0397US8453764B2System and method for monitoring and controlling underground drillingTURNER WILLIAM EVANS·Filed 2010·Granted Jun 4, 2013·40 cites·25 claims
- 0497US6257356B1Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using sameAPS TECHNOLOGY INC·Filed 1999·Granted Jul 10, 2001·240 cites·40 claims
- 0596USD843381SDisplay screen or portion thereof with a graphical user interface for analyzing and presenting drilling dataAPS TECH INC·Filed 2013·Granted Mar 19, 2019·47 cites·1 claims
- 0696US8944190B2System and method for damping vibration in a drill stringAPS TECHNOLOGY INC·Filed 2014·Granted Feb 3, 2015·13 cites·20 claims
- 0795US8640791B2System and method for monitoring and controlling underground drillingTURNER WILLIAM EVANS·Filed 2012·Granted Feb 4, 2014·16 cites·7 claims
- 0894US7219752B2System and method for damping vibration in a drill stringAPS TECHNOLOGY INC·Filed 2004·Granted May 22, 2007·86 cites·26 claims
- 0993USD928195SDisplay screen or portion thereof with a graphical user interface for analyzing and presenting drilling dataAPS TECH INC·Filed 2019·Granted Aug 17, 2021·8 cites·1 claims
- 1093US5251708AModular connector for measurement-while-drilling toolBAKER HUGHES INC·Filed 1991·Granted Oct 12, 1993·134 cites·16 claims
- 1192US7762356B2Rotary steerable motor system for underground drillingAPS TECHNOLOGY INC·Filed 2008·Granted Jul 27, 2010·44 cites·28 claims
- 1292US6622803B2Stabilizer for use in a drill stringROTARY DRILLING TECHNOLOGY LLC·Filed 2001·Granted Sep 23, 2003·162 cites·17 claims
- 1392US4779852AVibration isolator and shock absorber device with conical disc springsTELECO OILFIELD SERVICES INC·Filed 1987·Granted Oct 25, 1988·112 cites·27 claims
- 1491US8240401B2System and method for damping vibration in a drill stringWASSELL MARK ELLSWORTH·Filed 2011·Granted Aug 14, 2012·11 cites·10 claims
- 1591US7389830B2Rotary steerable motor system for underground drillingAPS TECHNOLOGY INC·Filed 2005·Granted Jun 24, 2008·42 cites·53 claims
- 1690US9057245B2Methods for optimizing and monitoring underground drillingWASSELL MARK ELLSWORTH·Filed 2011·Granted Jun 16, 2015·14 cites·13 claims
- 1790US8397562B2Apparatus for measuring bending on a drill bit operating in a wellWASSELL MARK ELLSWORTH·Filed 2009·Granted Mar 19, 2013·27 cites·1 claims
- 1889US7377339B2System and method for damping vibration in a drill stringAPS TECHNOLOGY INC·Filed 2007·Granted May 27, 2008·24 cites·10 claims
- 1988US8662205B2System and method for damping vibration in a drill stringWASSELL MARK ELLSWORTH·Filed 2012·Granted Mar 4, 2014·7 cites·14 claims
- 2087US9458679B2Apparatus and method for damping vibration in a drill stringTURNER WILLIAM EVANS·Filed 2011·Granted Oct 4, 2016·14 cites·36 claims
- 2185US10472944B2Drilling system and associated system and method for monitoring, controlling, and predicting vibration in an underground drilling operationAPS TECH INC·Filed 2013·Granted Nov 12, 2019·9 cites·19 claims
- 2284US7997357B2System and method for damping vibration in a drill stringAPS TECHNOLOGY INC·Filed 2008·Granted Aug 16, 2011·16 cites·7 claims
- 2382US6547016B2Apparatus for measuring weight and torque on drill bit operating in a wellAPS TECHNOLOGY INC·Filed 2000·Granted Apr 15, 2003·65 cites·19 claims
- 2481US10416024B2System and method for monitoring and controlling underground drillingAPS TECH INC·Filed 2017·Granted Sep 17, 2019·1 cites·8 claims
- 2581US8087476B2System and method for damping vibration in a drill string using a magnetorheological damperWASSELL MARK ELLSWORTH·Filed 2009·Granted Jan 3, 2012·22 cites·35 claims
- 2680US5226332AVibration monitoring system for drillstringBAKER HUGHES INC·Filed 1991·Granted Jul 13, 1993·71 cites·18 claims
- 2775US9279903B2Apparatus for measuring bending on a drill bit operating in a wellWASSELL MARK ELLSWORTH·Filed 2013·Granted Mar 8, 2016·3 cites·16 claims
- 2871US2020003611A1System and method for monitoring and controlling underground drillingAPS TECH INC·Filed 2019·Application pending·0 cites
- 2970US5144126AApparatus for nuclear logging employing sub wall mounted detectors and electronics, and modular connector assembliesTELECO OILFIED SERVICES INC·Filed 1990·Granted Sep 1, 1992·44 cites·48 claims
- 3063US5216242AApparatus for nuclear logging employing sub wall mounted detectors and modular connector assembliesTELECO OILFIELD SERVICES INC·Filed 1991·Granted Jun 1, 1993·29 cites·27 claims
- 3152US7249968B1Electrical connections for harsh conditionsAPS TECHNOLOGY INC·Filed 2004·Granted Jul 31, 2007·8 cites·7 claims
- 3250US9976360B2System and method for damping vibration in a drill string using a magnetorheological damperWASSELL MARK ELLSWORTH·Filed 2011·Granted May 22, 2018·1 cites·27 claims
- 3349US11078772B2Drilling system for monitoring and displaying drilling parameters for a drilling operation of a drilling systemAPS TECH INC·Filed 2013·Granted Aug 3, 2021·0 cites·13 claims
- 3449US4482297ABladed rotor assemblyTERRY CORP·Filed 1981·Granted Nov 13, 1984·22 cites·17 claims
- 3548US4482296ABladed rotor assembly and method of forming sameTERRY CORP·Filed 1982·Granted Nov 13, 1984·12 cites·28 claims
- 3643US2015083493A1Drilling System and Associated System and Method for Monitoring, Controlling, and Predicting Vibration in an Underground Drilling OperationWASSELL MARK ELLSWORTH·Filed 2013·Application pending·0 cites
- 3738US4684326ABladed rotor assembly, and method of forming sameTERRY CORP·Filed 1984·Granted Aug 4, 1987·13 cites·6 claims
- 3836US2002011358A1Steerable drill stringAPS TECHNOLOGY INC·Filed 2001·Application pending·0 cites
- 3934US2004011559A1Stabilizer for use in a drill stringFiled 2003·Application pending·0 cites
- 4031US10233700B2Downhole drilling motor with an adjustment assemblyAPS TECH INC·Filed 2015·Granted Mar 19, 2019·0 cites·36 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →