ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,159, issued on June 17, was assigned to Essenlix Corp. (Monmouth Junction, N.J.).

"Multiplex assays using separation structure and well structure" was invented by Stephen Y. Chou (Princeton, N.J.) and Wei Ding (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multiplex assay device including: a separation structure on a first plate; and a sample contact area on the surface of the first plate. Also disclosed is a method for fabricating a multiplex assay, including: making a reagent into a non-liquid reagent particle; creating a well on a sample contact area of a plate of a Q-card two plate sample card; and dropping one or more of the ...