CHICAGO, ILLINOIS, US — A US District Court judge denied an attempt by Prairie Land Millwright Service to overturn a December 2022 verdict awarding Sioux Steel Co. $11.8 million in damages based on Prairie Land’s willful infringement of Sioux Steel’s patent for grain bin paddle sweeps.
Judge Mary M. Rowland also granted Sioux Steel’s post-trial motion for a permanent injunction. Prairie Land and defendant Duane Chaon are precluded from continuing to manufacture, advertise or sell infringing products in the market, including the Bin Gator products.
Sioux Steel originally filed the lawsuit in February 2016 alleging that Illinois-based Prairie Land had been marketing, producing and selling a bin paddle sweep that Sioux Steel had patented.
Following a 10-day trial, a jury found in favor of Sioux Steel on Dec. 21, 2022, and awarded it damages.
Sioux Steel Co. is a fourth-generation, family-owned company that has been manufacturing high-quality products since 1918. Sioux Steel offers an extensive line of products, including farm and commercial grain systems, paddle sweeps, ProTec buildings, livestock equipment and grain baggers.
