ALEXANDRIA, Va., May 1 -- United States Patent no. 11,970,398, issued on April 30, was assigned to Trimtabs Ltd (Swansea, Great Britain).

"Process for reuse of plastic through the conversion to carbon nanomaterials" was invented by Alvin Orbaek White (Swansea, Great Britain) and Ali Hedayati (Molndal, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides methods for the conversion of a solution or suspension of polymers, plastics, and other carbon-containing waste materials in the presence of a metal containing catalyst into carbon nanotubes. The method includes steps of mixing the polymer and metallic catalyst in a suitable solvent and injecting the mixture into a heated zone...