US Patent Issued to Microsoft Technology Licensing on May 13 for "Graded-index polymer optical fibre and the fabrication thereof" (British, American Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,553, issued on May 13, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Graded-index polymer optical fibre and the fabrication thereof" was invented by Paolo Costa (London), Gilberto Brambilla (Southampton, Great Britain), Kai Shi (Cambridge, Great Britain), Hitesh Ballani (Cambridge, Great Britain) and Richard James Baca (Bothell, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of fabricating a graded-index polymer optical fibre comprises preparing a cladding composition, the cladding composition comprising either a mixture of a cladding polymer and a dopant or a mixture of a cladding polymer precursor and a dopan...