DD

Donald A. Doak

📍 Mount Pleasant, MI: #14 of 56 inventorsTop 25%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,629,148 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6089722 Kaleidoscope for viewing multiple reflections having a specific geometric shape — 2000-07-18
5924618 Magnetic device for scoring glass — 1999-07-20
5241418 Kaleidosphere — 1993-08-31