% Expired Patents = 100.0

CIPO Patents = 1

Forward Citations = 39

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2 inventors (with patents filed for the assignee):

Michael King Russell (2 out of 29 patents)

Colin Walker (2 out of 2 patents)

2 patents: Sort by Forward Citations

1. 7543658 - Directional drilling control (2009-06-09),

2. 7510031 - Directional drilling control (2009-03-31),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#18 in Cheltenham

#6,532 in United Kingdom

Cheltenham, United Kingdom

Russell Oil Exploration Limited

Forward Citations = 39

2 inventors:

Michael King Russell (2 out of 29 patents)

Colin Walker (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Russell Oil Exploration Limited. Retrieved from https://idiyas.com/company/russell-oil-exploration

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]

1 patent (CIPO):

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]