ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,421, issued on Aug. 12, was assigned to NXP B.V. (Eindhoven, Netherlands).
"Transformer filter with notch" was invented by Rajesh Prabhakar Shamala (Warangal, India), Stephane Damien Thuries (Saubens, France), Achal Venkatesh (Bangalore, India) and Erik Olieman (Waalre, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device includes a filter circuit having both a transformer and a notch filter. The notch filter is formed via capacitive cross-coupling of windings of the transformer. The transformer includes a first winding with an input terminal and an output terminal and a second winding with an input terminal and an output terminal. Th...