NM

Norman P. Matzen

ER Etymotic Research: 1 patents #2 of 3Top 70%
📍 Campbell, CA: #27 of 99 inventorsTop 30%
🗺 California: #4,598 of 17,285 inventorsTop 30%
Overall (1997): #98,034 of 185,788Top 55%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5696833 Hearing aid having externally controlled amplifier gain and method of using same Mead C. Killion 1997-12-09