ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,893, issued on March 25, was assigned to Blink Forward LLC (Phoenix).

"Error identification, indexing and linking construction documents" was invented by Samuel Melvin Smith (Lehi, Utah) and Michael Smith (Rancho Cucamonga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides various systems and methods for indexing digital (electronic) documents and providing various error reporting and identification functions. The systems and methods may utilize various software, hardware, and firmware modules to identify notations, such as sheet names, anchors, and anchor references on construction documents. Various algorithms ...