ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,625, issued on Feb. 11, was assigned to SUMITOMO PHARMA Co. LTD. (Osaka, Japan) and HEALIOS K.K. (Tokyo).
"Method for producing retinal pigment epithelial cells" was invented by Satoshi Ando (Osaka, Japan) and Takao Kuroda (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method for producing a retinal pigment epithelial cell by (1) maintaining and/or expanding human pluripotent stem cells comprising culturing the human pluripotent stem cells in the absence of a feeder cell in a medium comprising a factor for maintaining an undifferentiated state, (2) a first step for culturing the maintained and/or expanded human...