ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,400, issued on Sept. 9, was assigned to KEMIRA OYJ (Helsinki).
"Dewatering aids" was invented by Mehrdad Hesampour (Helsinki) and Matias Penttinen (Helsinki).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are filter aids for use in industrial processes such as metal ore beneficiation dewatering and filtering processes, paper and pulp dewatering processes and sludge dewatering in municipal waste treatment. The filter aid provides increased filtering efficiency, and reduced filter cake moisture levels."
The patent was filed on June 5, 2020, under Application No. 17/617,224.
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