ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,979, issued on April 22, was assigned to Honeywell International Inc. (Charlotte, N.C.).

"High-speed tunable chemical composition detecting components and apparatuses" was invented by Janmejaya Tripathy (Bangalore, India), Sumit Kulkarni (Bangalore, India), Swapnil Patil (Hyderabad, India) and R. Ranjith Narayanan (Hyderabad, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, apparatuses and systems for detecting multiple gaseous substances for detecting a plurality of target gaseous substances or chemical compositions, using, for example, a high-speed, tunable gas detecting apparatus. An example gas detecting apparatus may comprise: a lig...