SD

Stephen Douglas

📍 Boxborough, MA: #10 of 32 inventorsTop 35%
🗺 Massachusetts: #1,866 of 6,583 inventorsTop 30%
Overall (2004): #112,162 of 270,089Top 45%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6739821 Vertical conveyor device for various sized payloads Ladd Levis-Thorne, Rick Morgan, Robert J. Lang, Daniel J. McGuire 2004-05-25