ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,268, issued on Sept. 15, was assigned to Ethicon Inc. (Raritan, N.J.).

"Expandable hemostatic tablets comprising oxidized regenerated cellulose" was invented by Yi-Lan Wang (Belle Mead, N.J.) and Tien-Jung Lee (Basking Ridge, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to compressed hemostatic tablets or forms comprising a fibrous non-woven oxidized cellulose (OC or ORC) multilayer material compressed into a form stable tablet, further comprising calcium salt, with the tablets rapidly expandable on contact with blood or blood plasma. The compressed forms may further comprise a multi-arm PEG-SG and are dimen...