ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,587, issued on Sept. 2, was assigned to Equanostic AS (Oslo, Norway).

"Hybrid sensor head for surface inspection and method of use" was invented by Stig Stoa (Oslo, Norway), Andreas Reason Dahl (Oslo, Norway), Oyvind Lunde Hodneland (Oslo, Norway) and Tore Lie Sirevaag (Oslo, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hybrid sensor head (12) for inspecting a surface includes a casing (28) supporting at least one pair of pulse transceivers emitting respective pulses through a medium at different propagation speeds toward the surface and for receiving therefrom respective reflected pulses. The transceivers (50, 57) in each pair are config...