ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,984, issued on Nov. 25, was assigned to NOVA Chemicals (International) S.A. (Fribourg, Switzerland).

"Processes for producing polyethylene containing recycled polymeric material" was invented by Eric Clavelle (Calgary, Canada), Yves Lacombe (Calgary, Canada), Brian Molloy (Airdrie, Canada), Niousha Kazemi (Calgary, Canada), Mehdi Keshtkar (Calgary, Canada) and Fazle Sibtain (Calgary, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are polymerization processes where recycled polymeric material is fed to polymerization process to produce a blend of virgin polymer with recycled polymeric content."

The patent was filed on Dec. 16...