ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,439, issued on May 19.
"Magnetic field guide device and method for changing magnetic field state of target object" was invented by Wenjun Fu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a magnetic field guide device comprising a wedge-shaped magnetic field guide head whose border gradually converges along a specific direction. During use, the device is in proximity or connected to a target object requiring change in a magnetic field state, thus achieving the effect of guiding the magnetic field of the target object along a direction from a convergence end to a diffusion end of the device. Further disclosed is a method for chan...