RM

Robert A. MacDonald

KS Keystone Retaining Wall Systems: 8 patents #1 of 4Top 25%
📍 Plymouth, MN: #4 of 185 inventorsTop 3%
🗺 Minnesota: #108 of 5,843 inventorsTop 2%
Overall (2011): #5,530 of 364,097Top 2%
8
Patents 2011

Issued Patents 2011

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
D647632 Landscaping block 2011-10-25
D647633 Landscaping block 2011-10-25
D647218 Landscaping block 2011-10-18
D647219 Landscaping block 2011-10-18
D646403 Landscaping block 2011-10-04
7971407 Wall block and wall block system for constructing walls 2011-07-05
D633629 Wall block David M. LaCroix 2011-03-01
7871223 Retaining wall block Robert J. Race 2011-01-18