EP

Erich Papenfus

📍 Golden, CO: #527 of 1,256 inventorsTop 45%
🗺 Colorado: #17,029 of 40,980 inventorsTop 45%
Overall (All Time): #2,096,432 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8269083 String instrument frets and associated fret optical apparatus — 2012-09-18
7714218 String instrument frets and associated fret optical apparatus — 2010-05-11