SJ

Stephen D. Julstrom

ER Etymotic Research: 1 patents #2 of 13Top 20%
📍 Chicago, IL: #197 of 668 inventorsTop 30%
🗺 Illinois: #1,559 of 5,780 inventorsTop 30%
Overall (2003): #115,192 of 273,478Top 45%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6560344 Miniature surface mounted directional microphone assembly Robert B. Schulein, Viorel Drambarean 2003-05-06