ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,466, issued on Sept. 29, was assigned to Centre for Novostics (Shatin, Hong Kong).

"Analysis of nucleic acids associated with extracellular vesicles in pregnant females" was invented by Yuk-Ming Dennis Lo (Homantin, China), Rossa Wai Kwun Chiu (Shatin, China), Kwan Chee Chan (Jordan, China), Peiyong Jiang (Pak Shek Kok, China) and Qing Zhou (Tai Po, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Cell-free nucleic acid from extracellular particles (EPs) is analyzed. A sample can be purified for the extracellular particles. As examples, the purification can include centrifuging, washing, and a nuclease treatment. To increase the fetal fraction,...