Inventor

TELFER GEORGE

GB64 patents

⚠️ This page may combine multiple inventors who share the name “TELFER GEORGE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SPECIALISED PETROLEUM SERV LTD

22 patents

US7416029B2Aug 26, 2008

Downhole tool

SPECIALISED PETROLEUM SERV LTD160 citations95

US7665545B2Feb 23, 2010

Pressure controlled downhole operations

SPECIALISED PETROLEUM SERV LTD28 citations93

US7628213B2Dec 8, 2009

Multi-cycle downhole tool with hydraulic damping

SPECIALISED PETROLEUM SERV LTD49 citations93

US7530400B2May 12, 2009

Downhole tool for selectively catching balls in a well bore

SPECIALISED PETROLEUM SERV LTD21 citations93

US7500526B2Mar 10, 2009

Downhole tool

SPECIALISED PETROLEUM SERV LTD37 citations93

US7497260B2Mar 3, 2009

Junk removal tool

SPECIALISED PETROLEUM SERV LTD40 citations93

US7383881B2Jun 10, 2008

Stabiliser, jetting and circulating tool

SPECIALISED PETROLEUM SERV LTD38 citations93

US7121343B2Oct 17, 2006

Selectively operational cleaning tool

SPECIALISED PETROLEUM SERV LTD27 citations93

US7096950B2Aug 29, 2006

Combined milling and scraping tool

SPECIALISED PETROLEUM SERV LTD41 citations92

US6896064B2May 24, 2005

Compression set packer and method of use

SPECIALISED PETROLEUM SERV LTD28 citations92

US7681650B2Mar 23, 2010

Valve seat

SPECIALISED PETROLEUM SERV LTD26 citations91

US8844622B2Sep 30, 2014

Wellbore cleaning method and apparatus

SPECIALISED PETROLEUM SERV LTD9 citations84

US8356670B2Jan 22, 2013

Ball seat assembly and method of controlling fluid flow through a hollow body

SPECIALISED PETROLEUM SERV LTD18 citations84

US7992636B2Aug 9, 2011

Device and method for retrieving debris from a well

SPECIALISED PETROLEUM SERV LTD11 citations84

US7870897B2Jan 18, 2011

Dual function cleaning tool

SPECIALISED PETROLEUM SERV LTD7 citations84

US7735547B2Jun 15, 2010

Wellbore cleaning tool and method

SPECIALISED PETROLEUM SERV LTD10 citations84

US7510016B2Mar 31, 2009

Packer

SPECIALISED PETROLEUM SERV LTD13 citations84

US7191835B2Mar 20, 2007

Disengagable burr mill

SPECIALISED PETROLEUM SERV LTD10 citations84

US7055605B2Jun 6, 2006

Downhole circulation valve operated by dropping balls

SPECIALISED PETROLEUM SERV LTD17 citations84

US7559374B2Jul 14, 2009

Dual function cleaning tool

SPECIALISED PETROLEUM SERV LTD5 citations74

US7654316B2Feb 2, 2010

Downhole connector

SPECIALISED PETROLEUM SERV LTD6 citations63

US7314092B2Jan 1, 2008

Packer

SPECIALISED PETROLEUM SERV LTD6 citations63

ARDYNE HOLDINGS LTD

9 patents

US11613953B2Mar 28, 2023

Well abandonment and slot recovery

ARDYNE HOLDINGS LTD2 citations72

US11180973B2Nov 23, 2021

Downhole test tool and method of use

ARDYNE HOLDINGS LTD2 citations72

US11125036B2Sep 21, 2021

Downhole anchor mechanism

ARDYNE HOLDINGS LTD2 citations72

US11078754B2Aug 3, 2021

Downhole test tool and method of use

ARDYNE HOLDINGS LTD2 citations72

US10989017B2Apr 27, 2021

Method of abandoning a well

ARDYNE HOLDINGS LTD2 citations72

US11230898B2Jan 25, 2022

Well abandonment and slot recovery

ARDYNE HOLDINGS LTD0 citations63

US11156048B2Oct 26, 2021

Method and tool for well abandonment and slot recovery

ARDYNE HOLDINGS LTD0 citations63

US11512560B2Nov 29, 2022

Downhole tool

ARDYNE HOLDINGS LTD0 citations62

US11156049B2Oct 26, 2021

Well abandonment

ARDYNE HOLDINGS LTD0 citations58

TELFER GEORGE

8 patents

US8955584B2Feb 17, 2015

Drill string mounted rotatable tool and cleaning method

TELFER GEORGE7 citations84

US8408307B2Apr 2, 2013

Wellbore cleaning method and apparatus

TELFER GEORGE13 citations84

US8307902B2Nov 13, 2012

Downhole flow control tool and method

TELFER GEORGE16 citations84

US9624757B2Apr 18, 2017

Fluid-actuated downhole tool

TELFER GEORGE4 citations73

US9453383B2Sep 27, 2016

Modular tool for wellbore cleaning

TELFER GEORGE3 citations73

US9133675B2Sep 15, 2015

Downhole tool and method

TELFER GEORGE6 citations73

US8672035B2Mar 18, 2014

Downhole tool of high pressure operating cycle capability

TELFER GEORGE3 citations63

US8689877B2Apr 8, 2014

Downhole tool

TELFER GEORGE3 citations61

SPS AFOS GROUP LTD

2 patents

US6609569B2Aug 26, 2003

Downhole fluid sampler

SPS AFOS GROUP LTD77 citations97

US6453996B1Sep 24, 2002

Apparatus incorporating jet pump for well head cleaning

SPS AFOS GROUP LTD52 citations96

M I DRILLING FLUIDS UK LTD

2 patents

US10077614B2Sep 18, 2018

Drilling assembly

M I DRILLING FLUIDS UK LTD3 citations73

US10895129B2Jan 19, 2021

Open hole drilling magnet

M I DRILLING FLUIDS UK LTD3 citations72

WEATHERFORD LAMB

1 patent

US6032734AMar 7, 2000

Activating means for a down-hole tool

WEATHERFORD LAMB38 citations93

WOLF JOHN C

1 patent

US8672025B2Mar 18, 2014

Downhole debris removal tool

WOLF JOHN C18 citations81

ATKINS JAMES

1 patent

US8388256B2Mar 5, 2013

Clamp

ATKINS JAMES8 citations78

LINKLATER JAMES

1 patent

US9279305B2Mar 8, 2016

Downhole tool and method

LINKLATER JAMES3 citations70

NODECO LIMITED OF INTERNATIONA

1 patent

US5628366AMay 13, 1997

Protective arrangements for downhole tools

NODECO LIMITED OF INTERNATIONA14 citations70

NODECO LTD

1 patent

US5129454AJul 14, 1992

Multi-string packers

NODECO LTD17 citations70

SPECIALISED PETROLEUM SERVICES GROUP LTD

1 patent

US9745828B2Aug 29, 2017

Valve seat assembly, downhole tool and methods

SPECIALISED PETROLEUM SERVICES GROUP LTD2 citations69

Showing the top 50 of 64 patents by PatentIndex Score.