ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,309, issued on Feb. 3, was assigned to Meharry Medical College (Nashville, Tenn.).

"Methods of isolating cells from placental tissue" was invented by Donald J. Alcendor (Hermitage, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for isolating a population of cells from tissue are disclosed herein. In particular, the present disclosure provides methods for isolating cytotrophoblasts from placental tissue. The methods include isolating a population of cells with the use of a laboratory apparatus that is coated with a lubricant, such as petroleum jelly. The methods described herein achieve consistent in vitro isolation of purified cells." ...