RL

Robert John Lundell

KS Keystone Retaining Wall Systems: 5 patents #1 of 6Top 20%
📍 Stillwater, MN: #7 of 101 inventorsTop 7%
🗺 Minnesota: #360 of 7,575 inventorsTop 5%
Overall (2020): #31,554 of 565,922Top 6%
5
Patents 2020

Issued Patents 2020

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10760269 Retaining wall block and retaining wall block system Craig D. Moritz 2020-09-01
10760281 Veneer connectors, wall blocks, veneer panels for wall blocks, and walls Robert A. MacDonald 2020-09-01
10655340 Patio blocks and block systems with side surface positioning and retaining structures Robert A. MacDonald 2020-05-19
D880727 Landscaping block 2020-04-07
D877653 Planter block 2020-03-10