Forward Citations = 42

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6 inventors (with patents filed for the assignee):

John Roger Gilbert (2 out of 4 patents)

Jan Stephan Jacobi (2 out of 2 patents)

David John Astley (2 out of 2 patents)

4. Ian Robert Scholes (2 out of 2 patents)

5. Andrew George Ives (1 out of 1 patent)

6. Garth Royston Brookes (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4039403 - Electrowinning metals (1977-08-02),

2. 3957600 - Method of and anodes for use in electrowinning metals (1976-05-18),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#101 in Birmingham

#6,523 in United Kingdom

Birmingham, United Kingdom

Imi Refinery Holdings Limited

Forward Citations = 42

6 inventors:

John Roger Gilbert (2 out of 4 patents)

Jan Stephan Jacobi (2 out of 2 patents)

David John Astley (2 out of 2 patents)

4. Ian Robert Scholes (2 out of 2 patents)

5. Andrew George Ives (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Imi Refinery Holdings Limited. Retrieved from https://idiyas.com/company/imi-refinery-holdings

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]