Inventor · disambiguated record
Douglas A. Hunter
Also filed as: FIKOWSKI GLENDA · HUNTER DOUGLAS A · HUNTER DOUGLAS ANDREW
21 granted patents·2 pending applications·325 citations·filing 1997–2020
95Inventor score
Files withCANRIG DRILLING TECH LTD8HUNTER DOUGLAS A3HWD HOLDINGS LTD3PROSTAR ENERGY TECH USA LLC3PROSTAR MFG INC3
Top patents by PatentIndex Score
23 records- 0194US10988994B2Pipe handler and pipe loader for a well rigPROSTAR ENERGY TECH USA LLC·Filed 2020·Granted Apr 27, 2021·6 cites·11 claims
- 0293US10329857B2Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular stringsCANRIG DRILLING TECH LTD·Filed 2016·Granted Jun 25, 2019·7 cites·12 claims
- 0393US8074537B2Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular stringsHUNTER DOUGLAS A·Filed 2007·Granted Dec 13, 2011·25 cites·20 claims
- 0492US9797196B2Automated drilling/service rig apparatusPROSTAR MFG INC·Filed 2014·Granted Oct 24, 2017·20 cites·55 claims
- 0592US8033779B2Pipe handling apparatus and methodsCANRIG DRILLING TECH LTD·Filed 2008·Granted Oct 11, 2011·28 cites·19 claims
- 0692US7958787B2Oilfield tubular torque wrenchCANRIG DRILLING TECH LTD·Filed 2009·Granted Jun 14, 2011·46 cites·19 claims
- 0790US8215887B2Pipe-handling apparatus and methodsFIKOWSKI LARRY M·Filed 2010·Granted Jul 10, 2012·33 cites·29 claims
- 0890US7832974B2Pipe-handling apparatusCANRIG DRILLING TECH LTD·Filed 2005·Granted Nov 16, 2010·57 cites·22 claims
- 0982US10711523B2Automated drilling/service rig apparatusPROSTAR ENERGY TECH USA LLC·Filed 2017·Granted Jul 14, 2020·3 cites·42 claims
- 1082US9404324B2Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular stringsCANRIG DRILLING TECH LTD·Filed 2013·Granted Aug 2, 2016·4 cites·12 claims
- 1179US8490520B2Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular stringsHUNTER DOUGLAS A·Filed 2011·Granted Jul 23, 2013·4 cites·5 claims
- 1278US8042432B2Oilfield tubular torque wrenchCANRIG DRILLING TECH LTD·Filed 2009·Granted Oct 25, 2011·22 cites·28 claims
- 1376US11230886B2Automated drilling/service rig apparatusPROSTAR ENERGY TECH USA LLC·Filed 2020·Granted Jan 25, 2022·1 cites·5 claims
- 1476US8454296B2Pipe-handling apparatus and methodsGERBER ANDREW·Filed 2011·Granted Jun 4, 2013·5 cites·13 claims
- 1574US10738545B2Pipe handler and pipe loader for a well rigPROSTAR MFG INC·Filed 2016·Granted Aug 11, 2020·2 cites·12 claims
- 1673US6085486AForage compactorHWD HOLDINGS LTD·Filed 1997·Granted Jul 11, 2000·33 cites·18 claims
- 1771US9097070B2Apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular stringsHUNTER DOUGLAS A·Filed 2009·Granted Aug 4, 2015·5 cites·18 claims
- 1870US8016536B2Pipe-handling apparatus and methodsCANRIG DRILLING TECH LTD·Filed 2008·Granted Sep 13, 2011·12 cites·21 claims
- 1956US6526731B1Forage compacting apparatus with moisture sensorHWD HOLDINGS LTD·Filed 2000·Granted Mar 4, 2003·12 cites·1 claims
- 2049US2015300105A1Methods and apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular stringsCANRIG DRILLING TECH LTD·Filed 2015·Application pending·0 cites
- 2139US12269069B2Mat washing systemNORTHERN MAT & BRIDGE GP LTD·Filed 2019·Granted Apr 8, 2025·0 cites·27 claims
- 2239US11402053B2Vehicle support structure for a worksitePROSTAR MFG INC·Filed 2016·Granted Aug 2, 2022·0 cites·10 claims
- 2337US2003226336A1Forage compacting method and apparatusHWD HOLDINGS LTD·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →