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For the Inventor, By the Inventor

London, United Kingdom

Psion-computers Plc


USPTO Granted Patents = 3

Forward Citations = 64

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1 inventor (with patents filed for the assignee):

goldMedal Martin Philip Riddiford (3 out of 123 patents)


3 patents:

1. 6870730 - Computer with a pen or touch sensitive display (2005-03-22),
2. 5777281 - Key assembly (1998-07-07),
3. D394848 - Portable computing device (1998-06-02),
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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#758 in London

#4,791 in United Kingdom

...
London, United Kingdom

Psion-computers Plc

Forward Citations = 64

1 inventor:

goldMedal Martin Philip Riddiford (3 out of 123 patents)

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