ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,689, issued on June 16, was assigned to University of Pittsburgh-Of the Commonwealth System of Higher Education (Pittsburgh) and The Trustees of Columbia University In the City of New York (New York).

"Systems and methods for forming topological lattices of plasmonic merons" was invented by Hrvoje Petek (Pittsburgh), Zhikang Zhou (Pittsburgh), Atreyie Ghosh (Pittsburgh), Sena Yang (Pittsburgh), Tianyi Wang (Pittsburgh), Chen-Bin Huang (Hsinchu City, Taiwan) and Yanan Dai (New York).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for assembling electron spin and charge to possess one or more properties of a topological plasmonic spi...