US Patent Issued to Halliburton Energy Services on Nov. 18 for "Noise filter design for imbalanced currents in downhole applications" (Texas Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,604, issued on Nov. 18, was assigned to Halliburton Energy Services Inc. (Houston).

"Noise filter design for imbalanced currents in downhole applications" was invented by Lucian Popescu (Houston), Faisal Shah (Houston), Thong Minh Nguyen (Houston) and Brian A Roberson (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic interference (EMI) filter disposed in a downhole tool. The EMI filter may include at least one common mode choke. The at least one common mode choke may include a high permeability magnetic core and three coils wound around the high permeability magnetic core. The three coils may include an input and an output. ...