SJ

Stephen D. Julstrom

ER Etymotic Research: 1 patents #5 of 10Top 50%
📍 Chicago, IL: #299 of 948 inventorsTop 35%
🗺 Illinois: #2,058 of 6,921 inventorsTop 30%
Overall (2011): #160,222 of 364,097Top 45%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8022775 Systems and methods for maintaining a drive signal to a resonant circuit at a resonant frequency Timothy S. Monroe 2011-09-20