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For the Inventor, By the Inventor

GB

Vsd Limited


USPTO Granted Patents = 3

% Expired Patents = 100.0

Forward Citations = 58

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5 inventors (with patents filed for the assignee):

goldMedal Edward Colby (2 out of 26 patents)

silverMedal Michael John Black (2 out of 2 patents)

bronzeMedal Ian Frederick Moore (1 out of 1 patent)

4.  Robert Frederick Aird (1 out of 1 patent)

5.  Henry Joseph Grech-Cini (1 out of 1 patent)


3 patents:

1. 7002478 - Smoke and flame detection (2006-02-21),
2. 6956485 - Fire detection algorithm (2005-10-18),
3. 6844818 - Smoke detection (2005-01-18),
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USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#483 in

#4,886 in United Kingdom

GB
GB

Vsd Limited

Forward Citations = 58

5 inventors:

goldMedal Edward Colby (2 out of 26 patents)

silverMedal Michael John Black (2 out of 2 patents)

bronzeMedal Ian Frederick Moore (1 out of 1 patent)

4.  Robert Frederick Aird (1 out of 1 patent)

5.  Henry Joseph Grech-Cini (1 out of 1 patent)

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