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For the Inventor, By the Inventor

London, United Kingdom

Ventive Limited


USPTO Granted Patents = 2

% Expired Patents = 50.0


Trademarks = 1

Forward Citations = 17

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2 inventors (with patents filed for the assignee):

goldMedal Thomas Lipinski (1 out of 2 patents)

silverMedal Bernard Sherman (1 out of 1 patent)


2 patents:

1. 9151512 - Ventilation system (2015-10-06),
2. 5184435 - Readily cleanable gutter and gutter conversion method (1993-02-09),
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USPTO Data Jan 1 1976 - Sep 22 2026

2 Patents

#1,086 in London

#6,507 in United Kingdom

London, GB
London, United Kingdom

Ventive Limited

Forward Citations = 17

2 inventors:

goldMedal Thomas Lipinski (1 out of 2 patents)

silverMedal Bernard Sherman (1 out of 1 patent)

Please report any incorrect information to [email protected]
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