ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,041, issued on March 31, was assigned to Siemens Industry Software Inc. (Plano, Texas).
"Mixed sheet extension" was invented by Alex Lyons (Cambridge, Great Britain), Timothy Case (Milford, Ohio), Richard Collins (Cambridge, Great Britain) and Peter Nanson (Cambridge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A computer-implemented method of extending a mixed sheet within a B-rep model is described. The mixed sheet includes surfaces having different geometries, such as a mesh positioned between first and second classical geometry surfaces. A first guide curve is defined, located at the boundary of a first surface for a length cor...