Microsoft Technology Licensing Assigned Patent

Microsoft Technology Licensing, LLC, Redmond, WA, has been assigned a patent (11,059,016) developed by Strauss, Karin, Seattle, WA, Chen, Weida, Grass, Robert, Kohll, Alexander Xavier Christof, Zurich, Switzerland, and Nguyen, Bichlien Hoang, Seattle, WA, for a “silica encapsulated DNA on magnetic nanoparticles.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A data storage medium is disclosed comprising a substrate covered with alternating layers of a polycationic molecule and artificially synthesized DNA molecules encoding digital information. The magnetic substrate may be a metallic nanoparticle formed from a metal such as iron or cobalt. The polycationic molecule may be polyethyleneimine (PEI). The DNA is protected from degradation by encapsulation in silica. A process for stably storing DNA is also disclosed. Stored DNA may be freed from the silica for sequencing or other analysis by washing the silica-coated DNA with a buffered hydrogen fluoride solution. Storage densities of more than 7% DNA by weight are achieved on nanoparticles.”

The patent application was filed on June 25, 2018 (Appl. No.16/017,682