DJ

Derek Johnston

BB Brk Brands: 3 patents #1 of 12Top 9%
🗺 Illinois: #312 of 5,663 inventorsTop 6%
Overall (2004): #30,166 of 270,089Top 15%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6819252 Carbon monoxide and smoke detection apparatus Vincent J. Delia 2004-11-16
6762688 Device with silencing circuitry Vincent Mori, Edward C. Duran, Kenneth L. Venzant 2004-07-13
6731207 Modular detector system Michael A. Swieboda, Mark A. Devine, Andrew J. Ivanecky, Kenneth L. Venzant, Romualdo Sonny Siazon +1 more 2004-05-04