Inventor · disambiguated record
Eric C. Sullivan
Also filed as: SULLIVAN ERIC · SULLIVAN ERIC C · SULLIVAN ERIC CHARLES
91 granted patents·12 pending applications·2,194 citations·filing 1978–2021
99Inventor score
Files withBAKER HUGHES INC51TRINH TU TIEN15HUGHES TOOL CO7BAKER HUGHES OILFIELD OPERATIONS LLC6OLDHAM JACK T5
Top patents by PatentIndex Score
103 records- 0197US7861805B2Conformal bearing for rock drill bitBAKER HUGHES INC·Filed 2008·Granted Jan 4, 2011·35 cites·17 claims
- 0297US7395882B2Casing and liner drilling bitsBAKER HUGHES INC·Filed 2004·Granted Jul 8, 2008·154 cites·86 claims
- 0397US6540033B1Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2001·Granted Apr 1, 2003·167 cites·44 claims
- 0497US4726432ADifferentially hardfaced rock bitHUGHES TOOL CO·Filed 1987·Granted Feb 23, 1988·138 cites·8 claims
- 0595US9145741B2Cutting elements comprising sensors, earth-boring tools having such sensors, and associated methodsTRINH TU TIEN·Filed 2011·Granted Sep 29, 2015·23 cites·18 claims
- 0695US7604072B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2005·Granted Oct 20, 2009·53 cites·45 claims
- 0795US6626251B1Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2001·Granted Sep 30, 2003·115 cites·40 claims
- 0894US8201648B2Earth-boring particle-matrix rotary drill bit and method of making the sameCHOE HEEMAN·Filed 2009·Granted Jun 19, 2012·20 cites·13 claims
- 0994US7497276B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2007·Granted Mar 3, 2009·42 cites·20 claims
- 1094US7387177B2Bearing insert sleeve for roller cone bitBAKER HUGHES INC·Filed 2006·Granted Jun 17, 2008·73 cites·19 claims
- 1193US10066444B2Earth-boring tools including selectively actuatable cutting elements and related methodsBAKER HUGHES INC·Filed 2015·Granted Sep 4, 2018·10 cites·19 claims
- 1293US8746367B2Apparatus and methods for detecting performance data in an earth-boring drilling toolDIGIOVANNI ANTHONY A·Filed 2011·Granted Jun 10, 2014·16 cites·16 claims
- 1393US8376065B2Monitoring drilling performance in a sub-based unitBAKER HUGHES INC·Filed 2009·Granted Feb 19, 2013·51 cites·19 claims
- 1493US7631560B2Methods of inspecting rotary drill bitsBAKER HUGHES INC·Filed 2007·Granted Dec 15, 2009·20 cites·14 claims
- 1593US7510026B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2007·Granted Mar 31, 2009·40 cites·20 claims
- 1692US9739093B2Cutting elements comprising sensors, earth-boring tools having such sensors, and associated methodsBAKER HUGHES INC·Filed 2015·Granted Aug 22, 2017·7 cites·20 claims
- 1792US8215384B2Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensorTRINH TU TIEN·Filed 2008·Granted Jul 10, 2012·35 cites·25 claims
- 1892US7506695B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2007·Granted Mar 24, 2009·33 cites·13 claims
- 1992US6543312B2Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2001·Granted Apr 8, 2003·83 cites·5 claims
- 2092US6230822B1Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 1998·Granted May 15, 2001·111 cites·38 claims
- 2192US6026917AEarth-boring bit with improved bearing sealBAKER HUGHES INC·Filed 1997·Granted Feb 22, 2000·58 cites·20 claims
- 2291US8616089B2Method of making an earth-boring particle-matrix rotary drill bitCHOE HEEMAN·Filed 2011·Granted Dec 31, 2013·7 cites·11 claims
- 2391US8087477B2Methods and apparatuses for measuring drill bit conditionsSULLIVAN ERIC C·Filed 2009·Granted Jan 3, 2012·45 cites·23 claims
- 2491US7946357B2Drill bit with a sensor for estimating rate of penetration and apparatus for using sameBAKER HUGHES INC·Filed 2008·Granted May 24, 2011·40 cites·19 claims
- 2591US6571886B1Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2000·Granted Jun 3, 2003·98 cites·28 claims
- 2690US10214968B2Earth-boring tools including selectively actuatable cutting elements and related methodsBAKER HUGHES INC·Filed 2015·Granted Feb 26, 2019·7 cites·20 claims
- 2790US8006785B2Casing and liner drilling bits and reamersBAKER HUGHES INC·Filed 2008·Granted Aug 30, 2011·24 cites·69 claims
- 2890US7621346B1Hydrostatic bearingBAKER HUGHES INC·Filed 2008·Granted Nov 24, 2009·38 cites·21 claims
- 2989US10053916B2Nozzle assemblies including shape memory materials for earth-boring tools and related methodsBAKER HUGHES INC·Filed 2016·Granted Aug 21, 2018·4 cites·20 claims
- 3089US8167059B2Casing and liner drilling shoes having spiral blade configurations, and related methodsOLDHAM JACK T·Filed 2011·Granted May 1, 2012·8 cites·20 claims
- 3188US5038640ATitanium carbide modified hardfacing for use on bearing surfaces of earth boring bitsHUGHES TOOL CO·Filed 1990·Granted Aug 13, 1991·59 cites·8 claims
- 3287US7987925B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2010·Granted Aug 2, 2011·10 cites·21 claims
- 3387US7066280B2Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2003·Granted Jun 27, 2006·73 cites·55 claims
- 3486US8245792B2Drill bit with weight and torque sensors and method of making a drill bitTRINH TU TIEN·Filed 2008·Granted Aug 21, 2012·28 cites·16 claims
- 3586US6419032B1Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operationsBAKER HUGHES INC·Filed 2001·Granted Jul 16, 2002·51 cites·30 claims
- 3685US8695728B2Formation evaluation using a bit-based active radiation source and a gamma ray detectorTRINH TU TIEN·Filed 2011·Granted Apr 15, 2014·7 cites·18 claims
- 3785US7849934B2Method and apparatus for collecting drill bit performance dataBAKER HUGHES INC·Filed 2007·Granted Dec 14, 2010·24 cites·16 claims
- 3883US8210280B2Bit based formation evaluation using a gamma ray sensorTRINH TU TIEN·Filed 2008·Granted Jul 3, 2012·22 cites·19 claims
- 3983US4899838AEarth boring bit with convergent cutter bearingHUGHES TOOL CO·Filed 1988·Granted Feb 13, 1990·67 cites·3 claims
- 4082US10508323B2Method and apparatus for securing bodies using shape memory materialsBAKER HUGHES A GE CO LLC·Filed 2016·Granted Dec 17, 2019·1 cites·22 claims
- 4182US10280479B2Earth-boring tools and methods for forming earth-boring tools using shape memory materialsBAKER HUGHES INC·Filed 2016·Granted May 7, 2019·1 cites·20 claims
- 4282US9624729B2Real time bit monitoringSULLIVAN ERIC·Filed 2011·Granted Apr 18, 2017·12 cites·16 claims
- 4382US8991471B2Methods of forming earth-boring toolsCHENG XIAOMIN CHRIS·Filed 2011·Granted Mar 31, 2015·3 cites·18 claims
- 4482US7954380B2Rotary drill bits and systems for inspecting rotary drill bitsBAKER HUGHES INC·Filed 2009·Granted Jun 7, 2011·6 cites·14 claims
- 4582US4228339AMethod of hardfacing tool jointsHUGHES TOOL CO·Filed 1978·Granted Oct 14, 1980·29 cites·4 claims
- 4681US8225887B2Casing and liner drilling shoes with portions configured to fail responsive to pressure, and related methodsOLDHAM JACK T·Filed 2011·Granted Jul 24, 2012·4 cites·21 claims
- 4781US8205693B2Casing and liner drilling shoes having selected profile geometries, and related methodsOLDHAM JACK T·Filed 2011·Granted Jun 26, 2012·4 cites·21 claims
- 4880US8056651B2Adaptive control concept for hybrid PDC/roller cone bitsTURNER EVAN·Filed 2009·Granted Nov 15, 2011·24 cites·18 claims
- 4979US8100196B2Method and apparatus for collecting drill bit performance dataPASTUSEK PAUL E·Filed 2009·Granted Jan 24, 2012·23 cites·29 claims
- 5079US7472764B2Rotary drill bit shank, rotary drill bits so equipped, and methods of manufactureBAKER HUGHES INC·Filed 2005·Granted Jan 6, 2009·15 cites·29 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →