DW

Donald J. Westgaard

AM Alkco Manufacturing: 2 patents #4 of 5Top 80%
📍 Bloomingdale, IL: #93 of 224 inventorsTop 45%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,334,283 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4887196 Recessed track lighting system Tobias Brown, Scott L. Roos, Donald D. Biancalana 1989-12-12
4616296 Lamp Scott L. Roos 1986-10-07