DD

David Dawdy

CO Cornellcookson: 3 patents #10 of 29Top 35%
CE Ciw Enterprises: 2 patents #7 of 11Top 65%
Overall (All Time): #909,387 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12297696 Operator governor release for fire shutters Brian Rishi Kachchakaduge Fernando, John Elias Bullen 2025-05-13
11512523 Fire rated door 2022-11-29
10174545 Fabric fire rated door James Janick, Brian Feist, Ian Klish 2019-01-08
D810319 Screen 2018-02-13
9175513 Fire door method of operation 2015-11-03