AT

Andrew Tiefel

ZG Zen Design Group: 1 patents #3 of 4Top 75%
📍 South Lyon, MI: #215 of 510 inventorsTop 45%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,177,697 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6877875 Canted head-mounted light Sun Yu, David Perrin 2005-04-12
6860616 Ultraviolet light writing system Sun Yu, David Perrin 2005-03-01