ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,531, issued on Dec. 2, was assigned to Aalborg Universitet (Denmark).

"Spherical mechanism constructed with scissors linkages with control means" was invented by Miguel Nobre Castro (Aalborg, Denmark), John Rasmussen (Aalborg, Denmark) and Michael Skipper Andersen (Norager, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a curved spherical scissors linkage mechanism (1) comprising at least four linkage elements (2) each having a first end (3) and a second end (4); the linkage elements are arranged to form sides of one rhombus or parallelogram, or a series, such as a network, of joined rhombi or parallelograms. Each of ...