ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,698, issued on Feb. 17, was assigned to DDP SPECIALTY ELECTRONIC MATERIS US LLC.
"Grit blasting" was invented by Leaelaf Mengistu Hailemariam (Edina, Minn.) and Katariina Majamaa (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a process for blast cleaning comprising subjecting a work surface to a blast stream, wherein the work surface is metal that is contaminated with one or more radioactive moiety, wherein the blast stream comprises water and one or more resin particles."
The patent was filed on March 12, 2019, under Application No. 16/979,412.
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