DG

Donald J. Grattan

📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,273,098 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5666778 System for constructing a building Shannon Rose Grattan 1997-09-16
5253873 Variable force projector and catcher — 1993-10-19