NM

Norman P. Matzen

ER Etymotic Research: 1 patents #6 of 17Top 40%
📍 Campbell, CA: #53 of 191 inventorsTop 30%
🗺 California: #8,555 of 28,370 inventorsTop 35%
Overall (2004): #145,017 of 270,089Top 55%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6694034 Transmission detection and switch system for hearing improvement applications Stephen D. Julstrom, Elmer V. Carlson, Robert B. Schulein, Willem Soede 2004-02-17