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For the Inventor, By the Inventor

London, United Kingdom

Drexel Equipment (uk) Limited


USPTO Granted Patents = 3

Forward Citations = 78

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2 inventors (with patents filed for the assignee):

goldMedal Richard Alvin Armell (3 out of 11 patents)

silverMedal Andrew Scott (1 out of 1 patent)


3 patents:

1. 4805448 - Downhole pressure and/or temperature gauges (1989-02-21),
2. 4790381 - Centralizing devices for use in bore-holes (1988-12-13),
3. 4619322 - Centralizing devices for use down-well (1986-10-28),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#758 in London

#4,782 in United Kingdom

...
London, United Kingdom

Drexel Equipment (uk) Limited

Forward Citations = 78

2 inventors:

goldMedal Richard Alvin Armell (3 out of 11 patents)

silverMedal Andrew Scott (1 out of 1 patent)

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