Inventor · disambiguated record
George Telfer
Also filed as: TELFER GEORGE
64 granted patents·5 pending applications·914 citations·filing 1990–2022
99Inventor score
Files withSPECIALISED PETROLEUM SERV LTD24ARDYNE HOLDINGS LTD15TELFER GEORGE12ARDYNE TECH LIMITED2M-I DRILLING FLUIDS UK LTD2
Top patents by PatentIndex Score
69 records- 0192US7416029B2Downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Aug 26, 2008·160 cites·44 claims
- 0289US7500526B2Downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 10, 2009·37 cites·17 claims
- 0388US8844622B2Wellbore cleaning method and apparatusSPECIALISED PETROLEUM SERV LTD·Filed 2013·Granted Sep 30, 2014·9 cites·17 claims
- 0487US8307902B2Downhole flow control tool and methodTELFER GEORGE·Filed 2008·Granted Nov 13, 2012·16 cites·34 claims
- 0586US6609569B2Downhole fluid samplerSPS AFOS GROUP LTD·Filed 2001·Granted Aug 26, 2003·77 cites·13 claims
- 0683US7681650B2Valve seatSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 23, 2010·26 cites·21 claims
- 0780US8356670B2Ball seat assembly and method of controlling fluid flow through a hollow bodySPECIALISED PETROLEUM SERV LTD·Filed 2008·Granted Jan 22, 2013·18 cites·38 claims
- 0879US10989017B2Method of abandoning a wellARDYNE HOLDINGS LTD·Filed 2019·Granted Apr 27, 2021·2 cites·9 claims
- 0979US9133675B2Downhole tool and methodTELFER GEORGE·Filed 2011·Granted Sep 15, 2015·6 cites·7 claims
- 1078US11613953B2Well abandonment and slot recoveryARDYNE HOLDINGS LTD·Filed 2019·Granted Mar 28, 2023·2 cites·20 claims
- 1178US11078754B2Downhole test tool and method of useARDYNE HOLDINGS LTD·Filed 2017·Granted Aug 3, 2021·2 cites·18 claims
- 1278US10895129B2Open hole drilling magnetM I DRILLING FLUIDS UK LTD·Filed 2015·Granted Jan 19, 2021·3 cites·26 claims
- 1378US7628213B2Multi-cycle downhole tool with hydraulic dampingSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Dec 8, 2009·49 cites·21 claims
- 1478US6453996B1Apparatus incorporating jet pump for well head cleaningSPS AFOS GROUP LTD·Filed 2000·Granted Sep 24, 2002·52 cites·12 claims
- 1577US11180973B2Downhole test tool and method of useARDYNE HOLDINGS LTD·Filed 2017·Granted Nov 23, 2021·2 cites·18 claims
- 1677US8672025B2Downhole debris removal toolWOLF JOHN C·Filed 2009·Granted Mar 18, 2014·18 cites·22 claims
- 1776US8408307B2Wellbore cleaning method and apparatusTELFER GEORGE·Filed 2006·Granted Apr 2, 2013·13 cites·10 claims
- 1874US11125036B2Downhole anchor mechanismARDYNE HOLDINGS LTD·Filed 2018·Granted Sep 21, 2021·2 cites·17 claims
- 1974US7096950B2Combined milling and scraping toolSPECIALISED PETROLEUM SERV LTD·Filed 2001·Granted Aug 29, 2006·41 cites·16 claims
- 2073US7510016B2PackerSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 31, 2009·13 cites·25 claims
- 2173US7497260B2Junk removal toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Mar 3, 2009·40 cites·14 claims
- 2272US9624757B2Fluid-actuated downhole toolTELFER GEORGE·Filed 2012·Granted Apr 18, 2017·4 cites·15 claims
- 2372US8388256B2ClampATKINS JAMES·Filed 2005·Granted Mar 5, 2013·8 cites·12 claims
- 2472US7383881B2Stabiliser, jetting and circulating toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jun 10, 2008·38 cites·11 claims
- 2569US10077614B2Drilling assemblyM I DRILLING FLUIDS UK LTD·Filed 2013·Granted Sep 18, 2018·3 cites·19 claims
- 2669US9453383B2Modular tool for wellbore cleaningTELFER GEORGE·Filed 2011·Granted Sep 27, 2016·3 cites·15 claims
- 2769US7992636B2Device and method for retrieving debris from a wellSPECIALISED PETROLEUM SERV LTD·Filed 2006·Granted Aug 9, 2011·11 cites·31 claims
- 2869US7735547B2Wellbore cleaning tool and methodSPECIALISED PETROLEUM SERV LTD·Filed 2006·Granted Jun 15, 2010·10 cites·37 claims
- 2967US9279305B2Downhole tool and methodLINKLATER JAMES·Filed 2011·Granted Mar 8, 2016·3 cites·6 claims
- 3066US7870897B2Dual function cleaning toolSPECIALISED PETROLEUM SERV LTD·Filed 2009·Granted Jan 18, 2011·7 cites·12 claims
- 3165US7665545B2Pressure controlled downhole operationsSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Feb 23, 2010·28 cites·28 claims
- 3265US7121343B2Selectively operational cleaning toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Oct 17, 2006·27 cites·28 claims
- 3365US6896064B2Compression set packer and method of useSPECIALISED PETROLEUM SERV LTD·Filed 2001·Granted May 24, 2005·28 cites·12 claims
- 3463US9745828B2Valve seat assembly, downhole tool and methodsSPECIALISED PETROLEUM SERVICES GROUP LTD·Filed 2013·Granted Aug 29, 2017·2 cites·16 claims
- 3563US8955584B2Drill string mounted rotatable tool and cleaning methodTELFER GEORGE·Filed 2009·Granted Feb 17, 2015·7 cites·8 claims
- 3660US7530400B2Downhole tool for selectively catching balls in a well boreSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted May 12, 2009·21 cites·17 claims
- 3759US11230898B2Well abandonment and slot recoveryARDYNE HOLDINGS LTD·Filed 2018·Granted Jan 25, 2022·0 cites·14 claims
- 3859US6032734AActivating means for a down-hole toolWEATHERFORD LAMB·Filed 1996·Granted Mar 7, 2000·38 cites·11 claims
- 3958US9022130B2Downhole valve tool and method of useTELFER GEORGE·Filed 2010·Granted May 5, 2015·1 cites·25 claims
- 4057US11156048B2Method and tool for well abandonment and slot recoveryARDYNE HOLDINGS LTD·Filed 2018·Granted Oct 26, 2021·0 cites·10 claims
- 4155US11156049B2Well abandonmentARDYNE HOLDINGS LTD·Filed 2018·Granted Oct 26, 2021·0 cites·18 claims
- 4255US7055605B2Downhole circulation valve operated by dropping ballsSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Jun 6, 2006·17 cites·15 claims
- 4353US11512560B2Downhole toolARDYNE HOLDINGS LTD·Filed 2019·Granted Nov 29, 2022·0 cites·16 claims
- 4453US8689877B2Downhole toolTELFER GEORGE·Filed 2009·Granted Apr 8, 2014·3 cites·30 claims
- 4553US8672035B2Downhole tool of high pressure operating cycle capabilityTELFER GEORGE·Filed 2009·Granted Mar 18, 2014·3 cites·20 claims
- 4652US8684074B2Work string mounted cleaning tool and assembly methodATKINS JAMES EDWARD·Filed 2009·Granted Apr 1, 2014·0 cites·12 claims
- 4749US12371958B2On demand low shock ball seat system and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2022·Granted Jul 29, 2025·0 cites·17 claims
- 4849US9410570B2ClampSPECIALISED PETROLEUM SERVICES GROUP LTD·Filed 2013·Granted Aug 9, 2016·0 cites·10 claims
- 4949US7191835B2Disengagable burr millSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Mar 20, 2007·10 cites·14 claims
- 5049US2010065125A1Valve seat assembly, downhole tool and methodsSPECIALISED PETROLEUM SERV LTD·Filed 2008·Application pending·0 cites
Showing the top 50 of 69 patent records by PatentIndex Score.
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