DM

Donald J. Macaulay

📍 Sherwood, OR: #110 of 276 inventorsTop 40%
🗺 Oregon: #10,188 of 28,073 inventorsTop 40%
Overall (All Time): #1,611,795 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6610992 Rotating beam method and system for measuring part edges and openings Robert Macaulay, George Macaulay 2003-08-26
5427448 Method for mixing concrete using a cementitious material/liquid premixer David S. Lofts 1995-06-27
5352035 Concrete mixing system with cement/water premixer David S. Lofts 1994-10-04