Forward Citations = 541

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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),

Company Overview

Specialised Petroleum Services Limited is a prominent player in the oil and gas sector, focusing on providing innovative solutions and services tailored to the needs of the energy industry. The company specializes in advanced technologies for drilling, production, and reservoir management, enhancing operational efficiency and safety. Based in Westhill, GB, it serves a diverse clientele, contributing to the sustainable development of energy resources through its expertise in petroleum engineering and project management.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

11 Patents

#2 in Westhill

#1,599 in United Kingdom

#51,761 in the World

Westhill, United Kingdom

Specialised Petroleum Services Limited

Forward Citations = 541

2 inventors:

Mark Carmichael (11 out of 16 patents)

Paul David Howlett (10 out of 37 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Specialised Petroleum Services Limited. Retrieved from https://idiyas.com/company/specialised-petroleum-services

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]