BB

Bruce A. Blessington

W& W. R. Grace &: 1 patents #186 of 433Top 45%
Overall (All Time): #4,106,776 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4189886 Ventilated insulated roofing system Robert T. Frohlich, John L. Wright 1980-02-26