Inventor · disambiguated record
Christopher L. Drenth
Also filed as: DRENTH CHRISTOPHER L
78 granted patents·16 pending applications·591 citations·filing 1996–2025
99Inventor score
Top patents by PatentIndex Score
94 records- 0192US10626676B1Continuous sampling drill bitBLY IP INC·Filed 2019·Granted Apr 21, 2020·8 cites·21 claims
- 0292US10465463B2Core barrel head assembly with an integrated sample orientation tool and system for using sameLONGYEAR TM INC·Filed 2018·Granted Nov 5, 2019·5 cites·25 claims
- 0392US10047581B2Core barrel head assembly with an integrated sample orientation tool and system for using sameLONGYEAR TM INC·Filed 2015·Granted Aug 14, 2018·7 cites·33 claims
- 0492US5788401ARod jointBOART LONGYEAR INT HOLDING INC·Filed 1996·Granted Aug 4, 1998·87 cites·14 claims
- 0591US8051925B2Core barrel assemblies with braking devicesLONGYEAR TM INC·Filed 2011·Granted Nov 8, 2011·12 cites·18 claims
- 0691USD624564SSpearhead baseLONGYEAR TM INC·Filed 2009·Granted Sep 28, 2010·28 cites·1 claims
- 0791USD622741SSpearheadLONGYEAR TM INC·Filed 2009·Granted Aug 31, 2010·28 cites·1 claims
- 0891USD622294SSpearhead baseLONGYEAR TM INC·Filed 2009·Granted Aug 24, 2010·28 cites·1 claims
- 0991USD622293SSpearheadLONGYEAR TM INC·Filed 2009·Granted Aug 24, 2010·29 cites·1 claims
- 1090US11466529B2Core barrel head assembly with an integrated sample orientation tool and system for using sameLONGYEAR TM INC·Filed 2020·Granted Oct 11, 2022·2 cites·20 claims
- 1190US7967085B2Braking devices for use in drilling operationsLONGYEAR TM INC·Filed 2009·Granted Jun 28, 2011·27 cites·18 claims
- 1289US10830013B2Core barrel head assembly with an integrated sample orientation tool and system for using sameLONGYEAR TM INC·Filed 2019·Granted Nov 10, 2020·3 cites·25 claims
- 1389US10570676B2Drill string components having multiple-thread jointsBLY IP INC·Filed 2017·Granted Feb 25, 2020·4 cites·20 claims
- 1489US8794355B2Driven latch mechanismDRENTH CHRISTOPHER L·Filed 2010·Granted Aug 5, 2014·12 cites·18 claims
- 1588US11898404B2Drill string components having multiple-thread jointsBLY IP INC·Filed 2019·Granted Feb 13, 2024·3 cites·17 claims
- 1688US11499410B2Devices, systems, and methods for wireless data acquisition during drilling operationsBLY IP INC·Filed 2020·Granted Nov 15, 2022·2 cites·23 claims
- 1788US9810029B2Drill string components resistant to jammingDRENTH CHRISTOPHER L·Filed 2012·Granted Nov 7, 2017·11 cites·23 claims
- 1888US8485280B2Core drilling tools with retractably lockable driven latch mechanismsDRENTH CHRISTOPHER L·Filed 2010·Granted Jul 16, 2013·12 cites·24 claims
- 1988US7900716B2Vibratory unit for drilling systemsLONGYEAR TM INC·Filed 2008·Granted Mar 8, 2011·34 cites·24 claims
- 2085USD650052SSeal for head assemblyDRENTH CHRISTOPHER L·Filed 2010·Granted Dec 6, 2011·33 cites·1 claims
- 2183US8770322B2Latch body components having multiple functions, and drilling head assembly incorporating sameDRENTH CHRISTOPHER L·Filed 2012·Granted Jul 8, 2014·9 cites·26 claims
- 2283US8051924B2Methods of braking core barrel assembliesLONGYEAR TM INC·Filed 2011·Granted Nov 8, 2011·6 cites·20 claims
- 2382US10024117B2Drill rod having internally projecting portionsBLY IP INC·Filed 2017·Granted Jul 17, 2018·3 cites·24 claims
- 2481US9546524B2Handling and recovery devices for tubular members and associated methodsLONGYEAR TM INC·Filed 2014·Granted Jan 17, 2017·5 cites·30 claims
- 2580US12467329B2Core barrel head assembly with an integrated sample orientation tool and system for using sameVERACIO LTD·Filed 2023·Granted Nov 11, 2025·0 cites·18 claims
- 2680US10626684B2Handling and recovery devices for tubular members and associated methodsLONGYEAR TM INC·Filed 2018·Granted Apr 21, 2020·2 cites·11 claims
- 2780US10119344B2Handling and recovery devices for tubular members and associated methodsLONGYEAR TM INC·Filed 2016·Granted Nov 6, 2018·2 cites·11 claims
- 2879US9850723B2Drill string components having multiple-thread jointsBLY IP INC·Filed 2013·Granted Dec 26, 2017·4 cites·20 claims
- 2979US8770320B2Core lifterDRENTH CHRISTOPHER L·Filed 2010·Granted Jul 8, 2014·5 cites·24 claims
- 3078US12509986B2Devices, systems, and methods for wireless data acquisition during drilling operationsVERACIO LTD·Filed 2024·Granted Dec 30, 2025·0 cites·21 claims
- 3178US8869918B2Core drilling tools with external fluid pathwaysDRENTH CHRISTOPHER L·Filed 2010·Granted Oct 28, 2014·5 cites·26 claims
- 3276US9932775B2Drill rod having internally projecting portionsBLY IP INC·Filed 2015·Granted Apr 3, 2018·2 cites·23 claims
- 3375US2025163765A1Drill String Components Having Multiple-Thread JointsBOART LONGYEAR COMPANY·Filed 2025·Application pending·0 cites
- 3474US9328608B2Driven latch mechanismLONGYEAR TM INC·Filed 2014·Granted May 3, 2016·3 cites·26 claims
- 3574US8616303B2Helical drilling apparatus, systems, and methodsRUPP MICHAEL D·Filed 2011·Granted Dec 31, 2013·5 cites·24 claims
- 3674US2023124651A1Core barrel head assembly with an integrated sample orientation tool and system for using sameLONGYEAR TM INC·Filed 2022·Application pending·0 cites
- 3773US11976551B2Devices, systems, and methods for wireless data acquisition during drilling operationsLONGYEAR TM INC·Filed 2022·Granted May 7, 2024·0 cites·21 claims
- 3873US10253575B2Systems and methods for releasing a portion of a drill string from a drilling cableBLY IP INC·Filed 2016·Granted Apr 9, 2019·2 cites·24 claims
- 3973US9359847B2High productivity core drilling systemLONGYEAR TM INC·Filed 2012·Granted Jun 7, 2016·4 cites·24 claims
- 4073USD647540SCore barrel sleeve with axial groovesLONGYEAR TM INC·Filed 2011·Granted Oct 25, 2011·11 cites·1 claims
- 4173USD644673SCore lifterLONGYEAR TM INC·Filed 2010·Granted Sep 6, 2011·19 cites·1 claims
- 4273US2024003192A1Continuous Sampling Drill BitLONGYEAR TM INC·Filed 2023·Application pending·0 cites
- 4372US10053973B2Braking devices for drilling operations, and systems and methods of using sameLONGYEAR TM INC·Filed 2015·Granted Aug 21, 2018·2 cites·26 claims
- 4472USD648836SSeal for head assemblyDRENTH CHRISTOPHER L·Filed 2010·Granted Nov 15, 2011·18 cites·1 claims
- 4572US8006783B2Helical drilling apparatus, systems, and methodsLONGYEAR TM INC·Filed 2010·Granted Aug 30, 2011·4 cites·23 claims
- 4670US10364618B2Drill string components resistant to jammingBLY IP INC·Filed 2017·Granted Jul 30, 2019·1 cites·20 claims
- 4769USD644668SCore barrel head assembly with axial grooveLONGYEAR TM INC·Filed 2011·Granted Sep 6, 2011·9 cites·1 claims
- 4868US2025027384A1Core Barrel Head AssemblyVERACIO LTD·Filed 2024·Application pending·0 cites
- 4967US10626692B2Overshot assembly and systems and methods of using sameBLY IP INC·Filed 2016·Granted Apr 21, 2020·1 cites·12 claims
- 5067US9399898B2Core drilling tools with retractably lockable driven latch mechanismsLONGYEAR TM INC·Filed 2014·Granted Jul 26, 2016·4 cites·22 claims
Showing the top 50 of 94 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Christopher L. Drenth files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →