Inventor · disambiguated record
William M. Roberts
Also filed as: ROBERTS WILLIAM M · ROBERTS WILLIAM MELCHIOR
25 granted patents·2 pending applications·857 citations·filing 1977–2015
97Inventor score
Top patents by PatentIndex Score
27 records- 0198US7980300B2Drillable bridge plugSMITH INTERNATIONAL·Filed 2008·Granted Jul 19, 2011·130 cites·16 claims
- 0297US4230061ALiquid cargo containerBALTEK CORP·Filed 1978·Granted Oct 28, 1980·77 cites·3 claims
- 0394US7424909B2Drillable bridge plugSMITH INTERNATIONAL·Filed 2005·Granted Sep 16, 2008·60 cites·17 claims
- 0493US8047280B2Drillable bridge plugSMITH INTERNATIONAL·Filed 2010·Granted Nov 1, 2011·19 cites·25 claims
- 0593US7810558B2Drillable bridge plugSMITH INTERNATIONAL·Filed 2007·Granted Oct 12, 2010·48 cites·24 claims
- 0692US6580732B1Multiple mode laserLITTON SYSTEMS INC·Filed 2000·Granted Jun 17, 2003·57 cites·9 claims
- 0790US4234043ARemovable subsea test valve system for deep waterBAKER INT CORP·Filed 1977·Granted Nov 18, 1980·75 cites·74 claims
- 0887US8074718B2Ball seat subROBERTS WILLIAM M·Filed 2009·Granted Dec 13, 2011·32 cites·20 claims
- 0987US7455118B2Secondary lock for a downhole toolSMITH INTERNATIONAL·Filed 2006·Granted Nov 25, 2008·31 cites·16 claims
- 1086US4325434ATubing shut off valveBAKER INT CORP·Filed 1979·Granted Apr 20, 1982·59 cites·21 claims
- 1181US4101045ACryogenic containerBALTEK CORP·Filed 1977·Granted Jul 18, 1978·33 cites·13 claims
- 1278US7665516B2Permanent anchoring deviceSMITH INTERNATIONAL·Filed 2007·Granted Feb 23, 2010·18 cites·18 claims
- 1377US4325409APilot valve for subsea test valve system for deep waterBAKER INT CORP·Filed 1979·Granted Apr 20, 1982·39 cites·5 claims
- 1476US9845651B2Retrievable downhole tool systemFORUM US INC·Filed 2015·Granted Dec 19, 2017·3 cites·20 claims
- 1568US7325631B2Mill and pump-off subSMITH INTERNATIONAL·Filed 2005·Granted Feb 5, 2008·12 cites·43 claims
- 1668US6564871B1High pressure permanent packerSMITH INTERNATIONAL·Filed 2000·Granted May 20, 2003·31 cites·17 claims
- 1768US4210207AValve apparatusBAKER INT CORP·Filed 1979·Granted Jul 1, 1980·27 cites·8 claims
- 1859US8424381B1Fluid level measuring deviceLAMPHERE DAVID A·Filed 2010·Granted Apr 23, 2013·2 cites·16 claims
- 1953US4430887APipe tester with multiple fluid source connectionsHYDRA SYSTEMS MFG INC·Filed 1982·Granted Feb 14, 1984·17 cites·11 claims
- 2052US4270606AApparatus for selective disengagement of a fluid transmission conduit and for control of fluid transmission from a well zoneBAKER INT CORP·Filed 1979·Granted Jun 2, 1981·16 cites·50 claims
- 2149US6164377ADownhole packer systemSMITH INTERNATIONAL·Filed 1999·Granted Dec 26, 2000·23 cites·18 claims
- 2246US4771881AMaterials handling systemROBERTS WILLIAM M·Filed 1986·Granted Sep 20, 1988·14 cites·12 claims
- 2346US2013098600A1Manufacturing Technique for a Composite Ball for Use Downhole in a Hydrocarbon WellboreTEAM OIL TOOLS LP·Filed 2012·Application pending·0 cites
- 2444US4565247AWireline set tubing retrievable seal bore packer apparatusELDER INC·Filed 1984·Granted Jan 21, 1986·16 cites·19 claims
- 2542US7216700B2Torsional resistant slip mechanism and methodSMITH INTERNATIONAL·Filed 2002·Granted May 15, 2007·4 cites·17 claims
- 2640US2013341049A1Lock mechanism for downhole toolsROBERTS WILLIAM M·Filed 2012·Application pending·0 cites
- 2732US6305474B1Scoop for use with an anchor system for supporting a whipstockSMITH INTERNATIONAL·Filed 1999·Granted Oct 23, 2001·14 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →