ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,356, issued on Oct. 14.
"Vertical axis multi-stage wind turbine generator" was invented by Kyung Hee Han (Yonginsi, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a vertical axis multi-stage wind turbine generator in which multiple stages are provided in a vertical axis to construct a plurality of power generating devices in one power generation facility so that backwind power is enhanced to the maximum, and headwind power is minimized to achieve an economical and efficient power generation function."
The patent was filed on Nov. 22, 2023, under Application No. 18/517,346.
*For further information, incl...