Inventor · disambiguated record
David Hirth
Also filed as: HIRTH DAVID E · HIRTH DAVID EUGENE
20 granted patents·1,253 citations·filing 1997–2016
97Inventor score
Top patents by PatentIndex Score
20 records- 0197US7165622B2Packer with metal sealing elementWEATHERFORD LAMB·Filed 2005·Granted Jan 23, 2007·91 cites·23 claims
- 0293US6908121B2Locking arrangement for a threaded connectorWEATHERFORD LAMB·Filed 2002·Granted Jun 21, 2005·52 cites·29 claims
- 0393US6866100B2Mechanically opened ball seat and expandable ball seatWEATHERFORD LAMB·Filed 2002·Granted Mar 15, 2005·121 cites·26 claims
- 0491US6715541B2Ball dropping assemblyWEATHERFORD LAMB·Filed 2002·Granted Apr 6, 2004·104 cites·46 claims
- 0591US5944108AMethod for multi-lateral completion and cementing the juncture with lateral wellboresBAKER HUGHES INC·Filed 1997·Granted Aug 31, 1999·143 cites·8 claims
- 0690US6079496AReduced-shock landing collarBAKER HUGHES INC·Filed 1997·Granted Jun 27, 2000·142 cites·20 claims
- 0789US7172029B2Bi-directionally boosting and internal pressure trapping packing element systemWEATHERFORD LAMB·Filed 2005·Granted Feb 6, 2007·31 cites·23 claims
- 0888US6776228B2Ball dropping assemblyWEATHERFORD LAMB·Filed 2002·Granted Aug 17, 2004·85 cites·30 claims
- 0985US7114573B2Hydraulic setting tool for liner hangerWEATHERFORD LAMB·Filed 2004·Granted Oct 3, 2006·67 cites·15 claims
- 1083US6672384B2Plug-dropping container for releasing a plug into a wellboreWEATHERFORD LAMB·Filed 2002·Granted Jan 6, 2004·69 cites·39 claims
- 1180US10597986B2Method and apparatus for bi-directionally anchoring a liner in a boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Mar 24, 2020·4 cites·15 claims
- 1280US6877567B2Expansion set liner hanger and method of setting sameWEATHERFORD LAMB·Filed 2002·Granted Apr 12, 2005·54 cites·28 claims
- 1378US6981547B2Wire lock expandable connectionWEATHERFORD LAMB·Filed 2002·Granted Jan 3, 2006·50 cites·13 claims
- 1478US6962206B2Packer with metal sealing elementWEATHERFORD LAMB·Filed 2003·Granted Nov 8, 2005·46 cites·40 claims
- 1577US6902008B2Bi-directionally boosting and internal pressure trapping packing element systemWEATHERFORD LAMB·Filed 2002·Granted Jun 7, 2005·42 cites·49 claims
- 1674US7055611B2Plug-dropping container for releasing a plug into a wellboreWEATHERFORD LAMB·Filed 2003·Granted Jun 6, 2006·44 cites·50 claims
- 1767US7225870B2Hydraulic tools for setting liner top packers and method for cementing linersWEATHERFORD LAMB·Filed 2003·Granted Jun 5, 2007·31 cites·44 claims
- 1862US6920927B2Method and apparatus for anchoring downhole tools in a wellboreWEATHERFORD LAMB·Filed 2003·Granted Jul 26, 2005·23 cites·32 claims
- 1958US7048055B2Packer with integral cleaning deviceWEATHERFORD LAMB·Filed 2003·Granted May 23, 2006·19 cites·29 claims
- 2057US6241023B1Unlocking packer setting method and deviceBAKER HUGHES INC·Filed 1999·Granted Jun 5, 2001·35 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →