US Patent Issued to Ezone Energy AS on April 14 for "Low-EMI transformer" (Norwegian Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,221, issued on April 14, was assigned to Ezone Energy AS (Oslo, Norway).

"Low-EMI transformer" was invented by Erlend Frisvold (Randaberg, Norway) and Erik Kjelland Svanes (Stavanger, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transformer has: i) a magnetizable core with respective primary and secondary coils; ii) a ground terminal for electrically connecting to an external ground terminal of an electric power grid, and iii) a physical electrical ground node placed at a location within the isolation transformer (100e1), wherein the physical electrical ground node is electrically connected to the ground terminal. The transformer has: iv...