ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,942, issued on Nov. 25, was assigned to Purdue Research Foundation (West Lafayette, Ind.).

"Mass tag analysis for rare cells and cell free molecules" was invented by Zane Baird (West Lafayette, Ind.), Robert Graham Cooks (West Lafayette, Ind.), Adam Hollerbach (West Lafayette, Ind.), Zheng Ouyang (West Lafayette, Ind.) and Michael Pugia (Elkhart, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention generally relates to mass tag analysis for rare cells and cell free molecules. In certain embodiments, the invention provides an apparatus including an essentially non-absorbent membrane having at least one pore, a microwell operably associat...