ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,566, issued on Dec. 23, was assigned to Revalyu Resources GmbH (Kleinostheim, Germany).

"Process for recycling polyethylene terephthalate using porous particulated filter material" was invented by Suresh L. Makhija (Mumbai, India), Dhanvant Yeola (Nashik, India) and Christian Neumann (Hanau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect is a method for producing a first intermediate product. A feedstock is provided that comprises a first polyester. The first polyester is contacted with a further organic compound in a volume section V3 to obtain a further initial mixture. A weight average molar mass of the first polyester is reduc...