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For the Inventor, By the Inventor

Farnborough, United Kingdom

Sondex Wireline Limited


USPTO Granted Patents = 23

% Expired Patents = 21.7



Trademarks = 1

Forward Citations = 89

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38 inventors (with patents filed for the assignee):

goldMedal James David Ratcliffe (9 out of 14 patents)

silverMedal Timothy Michael Gill (8 out of 10 patents)

bronzeMedal Neil Geoffrey Harris (4 out of 5 patents)

4.  Ian Hitchcock (4 out of 4 patents)

5.  Keith Robert Wootten (3 out of 7 patents)

6.  David B Ayers (3 out of 14 patents)

7.  Guy Harvey Mason (2 out of 6 patents)

8.  Kenneth Tomkins (2 out of 2 patents)

9.  Timothy Johnson (1 out of 13 patents)

10.  Sandip Maity (1 out of 1 patent)

11.  Paul Shambrook (1 out of 1 patent)

12.  Marian Morys (1 out of 27 patents)

13.  Helene Claire Climent (1 out of 11 patents)

14.  Steven Bill Ellenby (1 out of 1 patent)

15.  Dean Douglas Kleckner (1 out of 1 patent)


23 patents:

1. 11073471 - Tapered attenuation total internal reflection optical sensor for downhole production logging (2021-07-27),
2. 11021947 - Sensor bracket positioned on a movable arm system and method (2021-06-01),
3. 10920572 - Sensor deployment system and method using a movable arm with a telescoping section (2021-02-16),
4. 10907467 - Sensor deployment using a movable arm system and method (2021-02-02),
5. 10883325 - Arm deployment system and method (2021-01-05),
6. 10145214 - Energy storage system (2018-12-04),
7. 10082592 - Resistivity imager with reduced borehole loading (2018-09-25),
8. 10024153 - Wide temperature range peak hold circuit (2018-07-17),
9. 9638866 - Optical fibre quick connect box (2017-05-02),
10. 8950489 - Annular disposed stirling heat exchanger (2015-02-10),
11. 8939039 - Load cell for a downhole load measuring tool (2015-01-27),
12. 8860415 - Method and apparatus for measuring borehole mud resistivity (2014-10-14),
13. 8849572 - Apparatus for determining the concentration of a conductive fluid present in a fluid filled borehole (2014-09-30),
14. 8800384 - Canted helix collapsible flowmeter and method of measuring a fluid flow (2014-08-12),
15. 8734175 - Flexible sealing connector (2014-05-27),
Sondex Wireline Limited, based in Farnborough, UK, specializes in the development and manufacturing of advanced wireline technology solutions for the oil and gas industry. The company focuses on providing innovative tools and services that enhance the efficiency and safety of subsurface exploration and production activities. With a commitment to research and development, Sondex Wireline is dedicated to delivering high-quality products that meet the evolving needs of its global clientele in the energy sector.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

23 Patents

#5 in Farnborough

#771 in United Kingdom

#27,649 in the World

Farnborough, GB
Farnborough, United Kingdom

Sondex Wireline Limited

Forward Citations = 89

38 inventors:

goldMedal James David Ratcliffe (9 out of 14 patents)

silverMedal Timothy Michael Gill (8 out of 10 patents)

bronzeMedal Neil Geoffrey Harris (4 out of 5 patents)

4.  Ian Hitchcock (4 out of 4 patents)

5.  Keith Robert Wootten (3 out of 7 patents)

Please report any incorrect information to [email protected]
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