Inventor · disambiguated record
Terry J. Koltermann
Also filed as: KOLTERMANN TERRY · KOLTERMANN TERRY J
22 granted patents·14 pending applications·535 citations·filing 1990–2015
96Inventor score
Top patents by PatentIndex Score
36 records- 0198US7311159B2PCD face seal for earth-boring bitBAKER HUGHES INC·Filed 2006·Granted Dec 25, 2007·50 cites·18 claims
- 0294US7387177B2Bearing insert sleeve for roller cone bitBAKER HUGHES INC·Filed 2006·Granted Jun 17, 2008·73 cites·19 claims
- 0392US6026917AEarth-boring bit with improved bearing sealBAKER HUGHES INC·Filed 1997·Granted Feb 22, 2000·58 cites·20 claims
- 0491US7392862B2Seal insert ring for roller cone bitsBAKER HUGHES INC·Filed 2006·Granted Jul 1, 2008·56 cites·17 claims
- 0588US8967301B2Composite metallic elastomeric sealing components for roller cone drill bitsCURRY DAVID A·Filed 2010·Granted Mar 3, 2015·14 cites·10 claims
- 0687US6056072ALubricating greaseBAKER HUGHES INC·Filed 1998·Granted May 2, 2000·51 cites·18 claims
- 0787US5891830ALubricating greaseBAKER HUGHES INC·Filed 1997·Granted Apr 6, 1999·51 cites·26 claims
- 0883US6684966B2PCD face seal for earth-boring bitBAKER HUGHES INC·Filed 2001·Granted Feb 3, 2004·53 cites·18 claims
- 0980US9249629B2Enhanced backup ring edge features for metal face seal in roller cone drill bitsBAKER HUGHES INC·Filed 2015·Granted Feb 2, 2016·2 cites·10 claims
- 1080US7413037B2Metal face seal for an earth-boring bitBAKER HUGHES INC·Filed 2005·Granted Aug 19, 2008·20 cites·9 claims
- 1177US7168147B2Method for manufacturing a drilling tool with an elastomer seal having graded propertiesBAKER HUGHES INC·Filed 2005·Granted Jan 30, 2007·9 cites·18 claims
- 1270US8028770B2Conformal bearing for rock drill bitBAKER HUGHES INC·Filed 2010·Granted Oct 4, 2011·3 cites·20 claims
- 1369US5015401ABearings grease for rock bit bearingsHUGHES TOOL CO·Filed 1990·Granted May 14, 1991·25 cites·8 claims
- 1465US7350600B2Shirttails for reducing damaging effects of cuttingsBAKER HUGHES INC·Filed 2006·Granted Apr 1, 2008·7 cites·17 claims
- 1564US10151148B2Composite metallic elastomeric sealing components for roller cone drill bitsBAKER HUGHES INC·Filed 2015·Granted Dec 11, 2018·1 cites·13 claims
- 1664US9157280B2Enhanced backup ring features for metal face seal in roller cone drill bitsBAKER HUGHES INC·Filed 2013·Granted Oct 13, 2015·2 cites·23 claims
- 1764US7708090B2Excluder ring for earth-boring bitBAKER HUGHES INC·Filed 2006·Granted May 4, 2010·8 cites·7 claims
- 1863US7914006B2Drilling tool with elastomer seal having graded propertiesBAKER HUGHES INC·Filed 2005·Granted Mar 29, 2011·1 cites·16 claims
- 1959US7182162B2Shirttails for reducing damaging effects of cuttingsBAKER HUGHES INC·Filed 2004·Granted Feb 27, 2007·17 cites·26 claims
- 2059US6142249AEarth-boring bit with improved bearing sealBAKER HUGHES INC·Filed 1999·Granted Nov 7, 2000·32 cites·19 claims
- 2153US2009236147A1Lubricated Diamond Bearing Drill BitBAKER HUGHES INC·Filed 2008·Application pending·0 cites
- 2251US2009229886A1Non-Grease Type Bearing LubricantBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 2349US2014225328A1Enhanced Backup Ring Edge Features for Metal Face Seal in Roller Cone Drill BitsBAKER HUGHES INC·Filed 2013·Application pending·0 cites
- 2447US2009014217A1Roller Cone Bit Bearing, and Bearing MaterialsBAKER HUGHES INC·Filed 2008·Application pending·0 cites
- 2543US7975779B2Threaded cone retention system for roller cone bitsBAKER HUGHES INC·Filed 2008·Granted Jul 12, 2011·0 cites·21 claims
- 2642US2009321146A1Earth Boring Bit with DLC Coated Bearing and SealBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 2742US2011024199A1Seal Ring With Auxiliary Ring for Earth-Boring BitBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 2841US2010071960A1System, Method and Apparatus for Composite Seal Gland Insert in Roller Cone Rock BitBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 2941US2009205873A1Downhole tool bearing system containing diamond enhanced materialsBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 3040US2009260888A1Fiber Reinforced Pressure Compensator DiaphragmBAKER HUGHES INC·Filed 2009·Application pending·0 cites
- 3140US2011024198A1Bearing systems containing diamond enhanced materials and downhole applications for sameBAKER HUGHES INC·Filed 2010·Application pending·0 cites
- 3239US7066286B2Gage surface scraperBAKER HUGHES INC·Filed 2004·Granted Jun 27, 2006·2 cites·17 claims
- 3339US2010147595A1Bearing seal with improved contact widthBAKER HUGHES INC·Filed 2008·Application pending·0 cites
- 3439US2008257610A1Elastomer Material for High Temperature Roller Cone BitsBAKER HUGHES INC·Filed 2008·Application pending·0 cites
- 3538US2008245577A1System, method, and apparatus for contoured thrust surfaces between thrust washer and head for roller cone drill bitBAKER HUGHES INC·Filed 2007·Application pending·0 cites
- 3637US2006243494A1Earth boring bit lubricant chamber barrier member with dispersed fibersBAKER HUGHES INC·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →