ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,603, issued on May 27, was assigned to Osaka University (Osaka, Japan).

"Cell populations of CD31-positive, CD45-negative, CD200-positive mammalian cells and use thereof" was invented by Nobuyuki Takakura (Osaka, Japan), Hisamichi Naito (Osaka, Japan) and Taku Wakabayashi (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a cell population substantially consisting of mammalian cells that are positive for cell surface markers CD31 and CD200 and negative for CD45; a cell population substantially consisting of mammalian cells that are positive for cell surface markers CD31, CD157 and CD200 and negative for CD45; a mammalian vascu...