ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,395, issued on Sept. 8, was assigned to Greenbul Engineering EOOD (Plovdiv, Bulgaria).

"Thermokinetic mixer for melt-mixing waste plastic products" was invented by Reimund Dann (Warendorf, Germany) and Alexander Huwe (Bad Vilbel, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermokinetic mixer for melt mixing plastics waste includes a housing enclosing a mixing chamber, and a shaft protruding through the mixing chamber and connectable to a drive unit. In the mixing chamber, Y-shaped mixing blades protrude radially from the shaft, wherein the free end of the mixing blades protruding into the mixing chamber is cuboid, and the end opposite ...