For the Inventor, By the Inventor

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Birmingham, United Kingdom

Imi Refinery Holdings Limited

USPTO Granted Patents = 2

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),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#90 in Birmingham

#6,361 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)

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