ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,592, issued on May 19, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Biomarker sensing structure" was invented by Alexander Reznicek (Troy, N.Y.), Bahman Hekmatshoartabari (White Plains, N.Y.), Martin G. Keen (Cary, N.C.) and Jeremy R. Fox (Georgetown, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A biosensor device is provided. The biosensor includes an amplifying bipolar junction transistor (BJT) and a sensing BJT defining a sensing trench. The sensing BJT and the amplifying BJT are coupled to form a Sziklai pair with an emitter of the sensing BJT connected to a collector of the amplifying BJT and a collector of the ...