US Patent Issued to WEATHERFORD TECHNOLOGY HOLDINGS on Dec. 23 for "Method of and apparatus for determining variations in wall thickness in ferromagnetic tubes" (British Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,267, issued on Dec. 23, was assigned to WEATHERFORD TECHNOLOGY HOLDINGS LLC (Houston).

"Method of and apparatus for determining variations in wall thickness in ferromagnetic tubes" was invented by Said Assous (Radcliffe-on-Trent, Great Britain), Peter Adrian Spencer Elkington (Loughborough, Great Britain) and Mark Bacciarelli (Loughborough, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method can include energizing a tube with a longitudinally extending magnetic field generated inside the tube, using a magnetic field-detecting logging tool to generate magnetic flux signals generated inside the tube externally of the material of the ...