For the Inventor, By the Inventor

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London, United Kingdom

Thorn Emi Ferguson Limited

USPTO Granted Patents = 2

Forward Citations = 114

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4 inventors (with patents filed for the assignee):

David W Walton (1 out of 2 patents)

Leslie R Sage (1 out of 1 patent)

Douglas R Topping (1 out of 1 patent)

4. David Brooks (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4543616 - Video recording and display equipment (1985-09-24),

2. 4455673 - Stereo indicating circuit (1984-06-19),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#1,005 in London

#6,361 in United Kingdom

London, United Kingdom

Thorn Emi Ferguson Limited

Forward Citations = 114

4 inventors:

David W Walton (1 out of 2 patents)

Leslie R Sage (1 out of 1 patent)

Douglas R Topping (1 out of 1 patent)

4. David Brooks (1 out of 1 patent)

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