DJ

Douglas Johnson

EB E.D. Bullard: 1 patents #23 of 35Top 70%
EM Emc: 1 patents #1,879 of 3,345Top 60%
📍 Marlborough, MA: #391 of 796 inventorsTop 50%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #2,120,462 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7699053 Powered air-purifying respirator system Shaun Johnson 2010-04-20
5913227 Agent-implemented locking mechanism Yoav Raz, Walter M. Caritj 1999-06-15