ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,892, issued on Oct. 20, was assigned to Neste Oyj (Espoo, Finland).
"Method for upgrading liquefied waste plastics" was invented by Jukka-Pekka Pasanen (Porvoo, Finland), Ville Paasikallio (Porvoo, Finland), Risto Vapola (Porvoo, Finland) and Antti Ojala (Porvoo, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a method for upgrading liquefied waste plastics, the method including a step (A) of providing liquefied waste plastics (LWP) material, optionally a step (B) of pre-treating at least part of the liquefied waste plastics (LWP) material to produce a pre-treated liquefied waste plastics (LWP) material, a st...