ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,473, issued on Jan. 20.
"Compact multifunctional filter" was invented by Luiz H Bueno (Recife, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic filter with passive and active filters installed in parallel on an electrical network. The passive filter attenuates an unwanted harmonic on the network. The active filter detects remaining unwanted harmonic and generates a sinusoidal signal introduced to the network to cancel remaining harmonic."
The patent was filed on Aug. 28, 2023, under Application No. 18/239,064.
*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?S...