WB

William V. Block

BL Birchwood Laboratories: 2 patents #1 of 3Top 35%
📍 Apple Valley, MN: #6 of 59 inventorsTop 15%
🗺 Minnesota: #442 of 4,231 inventorsTop 15%
Overall (2005): #29,555 of 245,428Top 15%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6899769 Composition and method for metal coloring process Keith N. Ravenscroft 2005-05-31
6899956 Metal coloring process and solutions therefor Bryce D. Devine 2005-05-31