AT

Andrew Tiefel

ZG Zen Design Group: 1 patents #3 of 4Top 75%
📍 South Lyon, MI: #2 of 35 inventorsTop 6%
🗺 Michigan: #566 of 5,720 inventorsTop 10%
Overall (2005): #63,039 of 245,428Top 30%
2
Patents 2005

Issued Patents 2005

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