ALEXANDRIA, Va., May 26 -- United States Patent no. 12,639,686, issued on May 26, was assigned to LINEN SOFTWARE INC. (Fremont, Calif.).

"Creation and maintenance of hierarchical data objects" was invented by Jacob Mathew (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations described herein relate to methods, systems, and computer-readable media to create and maintain hierarchies. In some implementations, a method may include displaying, on a user interface, a hierarchy graph that includes a plurality of nodes, wherein each of the nodes is associated with a corresponding data structure in a database table, and wherein each of the nodes is associated with a set of first attributes a...