OO

Ole A. Opsahl

Overall (All Time): #2,300,795 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5198082 Process for rehabilitating internally reinforced concrete by removal of chlorides Oystein Vennesland, John Miller 1993-03-30
4832803 Removal of chlorides from concrete Oystein Vennesland 1989-05-23