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Forward Citations = 536

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2 inventors (with patents filed for the assignee):

Mark Carmichael (11 out of 16 patents)

Paul David Howlett (10 out of 37 patents)

11 patents: Sort by Forward Citations

1. 6497295 - Torque limiting tool (2002-12-24),

2. 6343648 - Down-hole tool with detachable cleaning pads (2002-02-05),

3. 6302214 - Apparatus and method for inflating packers in a drilling well (2001-10-16),

4. 6279657 - Apparatus and method for circulating fluid in a well bore (2001-08-28),

5. 6253861 - Circulation tool (2001-07-03),

6. 6227291 - Compact well clean up tool with multifunction cleaning apparatus (2001-05-08),

7. 6220357 - Downhole flow control tool (2001-04-24),

8. 6152228 - Apparatus and method for circulating fluid in a borehole (2000-11-28),

9. 6152221 - Apparatus with retractable cleaning members (2000-11-28),

10. 6152220 - Down-hole tool with centralising component (2000-11-28),

11. 6102060 - Detachable locking device for a control valve and method (2000-08-15),

Specialised Petroleum Services Limited is a leading provider of innovative and specialized solutions for the oil and gas industry. With a strong focus on safety and efficiency, SP Services offers a wide range of services including pipeline maintenance, tank cleaning, and waste management. Their experienced team of professionals is dedicated to delivering high-quality results for their clients.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

11 Patents

#1 in Westill

#1,562 in United Kingdom

#50,238 in the World

Westill, United Kingdom

Specialised Petroleum Services Limited

Forward Citations = 536

2 inventors:

Mark Carmichael (11 out of 16 patents)

Paul David Howlett (10 out of 37 patents)

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