ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,209, issued on Sept. 1, was assigned to CORNING RESEARCH & DEVELOPMENT Corp. (Corning, N.Y.).

"Loopback dust cap for fiber optic link error detection and method of making same" was invented by Tory Allen Klavuhn (Granite Falls, N.C.) and Eric Stephan ten Have (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "A loopback dust cap for a fiber optic cable including at least two optical fibers terminated by a connector. The dust cap includes a body having a plurality of cavities including one cavity configured to receive one ferrule of the connector and another cavity configured to receive another ferrule of the connector. The plurality of cavities ...