US Patent Issued to ethris on Dec. 30 for "mRNA purification by tangential flow filtration" (German Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,679, issued on Dec. 30, was assigned to ethris GmbH (Planegg, Germany).

"mRNA purification by tangential flow filtration" was invented by Johannes Geiger (Munich) and Martin Treml (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a method of purifying mRNA molecules comprising (Ia) purifying precipitated mRNA molecules from a suspension comprising precipitated mRNA molecules, (Ib) washing and dissolving the purified precipitated mRNA molecules, (IIa) purifying the mRNA molecules using a solution comprising a chelating agent, followed by (IIb) washing the purified mRNA molecules, wherein steps (Ia) to (IIb) are pe...