KR

Keith N. Ravenscroft

BL Birchwood Laboratories: 2 patents #1 of 2Top 50%
📍 Orr, MN: #3 of 8 inventorsTop 40%
🗺 Minnesota: #643 of 4,860 inventorsTop 15%
Overall (2003): #57,015 of 273,478Top 25%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6576346 Composition and method for metal coloring process William V. Block 2003-06-10
6527873 Composition and method for metal coloring process William V. Block 2003-03-04