CB

Clifford Black

UG United States Gypsum: 2 patents #163 of 432Top 40%
📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #2,100,389 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7861470 Self centering shaft wall system James J. Lehane, Francis Harold Laux 2011-01-04
7712267 Self centering shaft wall system James J. Lehane, Francis Harold Laux 2010-05-11