US Patent Issued on June 16 for "Multi-modal fiducial marker" (Maryland Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,640, issued on June 16.

"Multi-modal fiducial marker" was invented by Pezhman Foroughi (Baltimore) and Alican Demir (Baltimore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-layer fiducial marker includes a graphic pattern layer having an upper surface and a lower surface, the upper surface including dark pattern disposed on a white background. The lower surface may be coated with a radiopaque material and a hard coat film layer may be disposed over the radiopaque material. A cup is provided having an upper rim, a trough and a lower surface. A ballistic gel layer having upper and lower surfaces is disposed in the trough of the cup. A first a...