ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,653, issued on Oct. 27, was assigned to EMD Millipore Corp. (Burlington, Mass.).

"High capacity composite depth filter media with low extractables" was invented by Maybelle Woo (Braintree, Mass.), David Yavorsky (Bolton, Mass.), John Amara (Reading, Mass.), Nripen Singh (Acton, Mass.) and Kwok-Shun Cheng (Nashua, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyacrylonitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits incr...