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For the Inventor, By the Inventor

GB

Pi Research Limited


USPTO Granted Patents = 1

Forward Citations = 69

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5 inventors (with patents filed for the assignee):

goldMedal Anthony J Purnell (1 out of 1 patent)

silverMedal Keith A Bradbury (1 out of 1 patent)

bronzeMedal John C Mumford (1 out of 1 patent)

4.  Mark J Broadbent (1 out of 2 patents)

5.  Raymond A Wardell (1 out of 1 patent)


1 patent:

1. 5173856 - Vehicle data recording system (1992-12-22),
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USPTO Data Jan 1 1976 - Sep 15 2026

1 Patents

#1,105 in

#9,855 in United Kingdom

GB
GB

Pi Research Limited

Forward Citations = 69

5 inventors:

goldMedal Anthony J Purnell (1 out of 1 patent)

silverMedal Keith A Bradbury (1 out of 1 patent)

bronzeMedal John C Mumford (1 out of 1 patent)

4.  Mark J Broadbent (1 out of 2 patents)

5.  Raymond A Wardell (1 out of 1 patent)

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