Inventor · disambiguated record
Eric M. Twardowski
Also filed as: TWARDOWSKI ERIC · TWARDOWSKI ERIC M · TWARDOWSKI ERIC MICHAEL
18 granted patents·3 pending applications·208 citations·filing 1996–2020
93Inventor score
Files withWEATHERFORD TECH HOLDINGS LLC10DENNIS TOOL COMPANY4TWARDOWSKI ERIC M3BEATTIE SCOTT1GAS RES INST1
Top patents by PatentIndex Score
21 records- 0198US6488103B1Drilling tool and method of using sameGAS RES INST·Filed 2001·Granted Dec 3, 2002·92 cites·14 claims
- 0277US9493989B2Subsea drilling with casingWEATHERFORD TECH HOLDINGS LLC·Filed 2015·Granted Nov 15, 2016·2 cites·26 claims
- 0376US11060383B2Wear bushing deployment and retrieval tool for subsea wellheadWEATHERFORD TECH HOLDINGS LLC·Filed 2020·Granted Jul 13, 2021·1 cites·20 claims
- 0476US10662743B2Wear bushing deployment and retrieval tool for subsea wellheadWEATHERFORD TECH HOLDINGS LLC·Filed 2018·Granted May 26, 2020·2 cites·26 claims
- 0575US8074749B2Earth removal member with features for facilitating drill-throughTWARDOWSKI ERIC M·Filed 2009·Granted Dec 13, 2011·13 cites·28 claims
- 0673US6213931B1Stump grinding toothDENNIS TOOL COMPANY·Filed 1999·Granted Apr 10, 2001·35 cites·20 claims
- 0769US8528669B2Earth removal member with features for facilitating drill-throughTWARDOWSKI ERIC M·Filed 2011·Granted Sep 10, 2013·3 cites·17 claims
- 0864US8839880B2Subsea drilling with casingTREVINO JOSE A·Filed 2009·Granted Sep 23, 2014·6 cites·28 claims
- 0963US5816347APDC clad drill bit insertDENNIS TOOL COMPANY·Filed 1996·Granted Oct 6, 1998·45 cites·13 claims
- 1061US9745821B2Method and apparatus for sealing tubularsWEATHERFORD TECH HOLDINGS LLC·Filed 2014·Granted Aug 29, 2017·1 cites·11 claims
- 1157US10590733B2Method and apparatus for sealing tubularsWEATHERFORD TECH HOLDINGS LLC·Filed 2017·Granted Mar 17, 2020·0 cites·17 claims
- 1256US9500044B2Tubular coupling deviceTWARDOWSKI ERIC M·Filed 2012·Granted Nov 22, 2016·1 cites·23 claims
- 1355US2017198526A1Subsea casing drilling systemWEATHERFORD TECH HOLDINGS LLC·Filed 2017·Application pending·0 cites
- 1454US9719303B2Subsea drilling with casingWEATHERFORD TECH HOLDINGS LLC·Filed 2014·Granted Aug 1, 2017·0 cites·5 claims
- 1554US2017051561A1Subsea casing drilling systemWEATHERFORD TECH HOLDINGS LLC·Filed 2016·Application pending·0 cites
- 1651US9488004B2Subsea casing drilling systemWEATHERFORD TECH HOLDINGS LLC·Filed 2013·Granted Nov 8, 2016·0 cites·25 claims
- 1750US9297210B2Earth removal member with features for facilitating drill-throughWEATHERFORD LAMB·Filed 2013·Granted Mar 29, 2016·0 cites·13 claims
- 1848US10161217B2Ball seat apparatus and methodWEATHERFORD TECH HOLDINGS LLC·Filed 2014·Granted Dec 25, 2018·0 cites·21 claims
- 1944US7712549B2Drilling toolDENNIS TOOL COMPANY·Filed 2004·Granted May 11, 2010·7 cites·12 claims
- 2036US2006237234A1Earth boring toolDENNIS TOOL COMPANY·Filed 2005·Application pending·0 cites
- 2127US9027643B2Method of removing cuttersBEATTIE SCOTT·Filed 2009·Granted May 12, 2015·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →