Forward Citations = 80

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2 inventors (with patents filed for the assignee):

Richard Alvin Armell (3 out of 11 patents)

Andrew Scott (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4805448 - Downhole pressure and/or temperature gauges (1989-02-21),

2. 4790381 - Centralizing devices for use in bore-holes (1988-12-13),

3. 4619322 - Centralizing devices for use down-well (1986-10-28),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#829 in London

#4,894 in United Kingdom

London, United Kingdom

Drexel Equipment (UK) Limited

Forward Citations = 80

2 inventors:

Richard Alvin Armell (3 out of 11 patents)

Andrew Scott (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Drexel Equipment (UK) Limited. Retrieved from https://idiyas.com/company/drexel-equipment-uk

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]