DH

Donald Stephen Hopkins

LC Lafarge Canada: 5 patents #2 of 28Top 8%
📍 Thornhill, CA: #94 of 534 inventorsTop 20%
Overall (All Time): #1,044,229 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6391105 Enhancement of cement clinker yield David Bridson Oates, Kevin Cail, Paul Lehoux, Robert Kim Ungar, James Edward Cross +1 more 2002-05-21
5928420 Cement composition for alkali-reactive aggregate and for sulphate resistance David Bridson Oates, Michael D. Thomas, Philip Zacarias, Kevin Cail 1999-07-27
5849075 Cementitious composition containing bottom ash as pozzolan and concretes and mortars therefrom David Bridson Oates 1998-12-15
5735947 Cement with air-cooled slag and silica fume David Bridson Oates 1998-04-07
5223035 Pozzolan blends David Bridson Oates, Rayburn R. Anderson, Paul Lehoux 1993-06-29