RC

Roger Challis

TL Triplex Safety Glass Limited: 1 patents #6 of 6Top 100%
📍 Northfield, MN: #75 of 168 inventorsTop 45%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,167,726 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7029133 Adjustable security enclosure — 2006-04-18
4212662 Method of heating glass sheets for conveying Paul A. Brereton 1980-07-15