ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,459, issued on July 1, was assigned to AHLSTROM OYJ (Helsinki).
"Compostable lid comprising an oxygen barrier layer for sealing a capsule and capsule sealed by the lid" was invented by Florence Vidal (Saint Cyr au Mont D'or, France), Mireille Roux (Givors, France), Herve Planchard (Crach, France) and Patrice Blanc (Saint Genis Laval, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compostable lid for sealing a capsule containing coffee in particular, consisting of a multilayer article comprising at least: a non-woven, the fibers of which contain at least 50% by weight of biodegradable fibers, a support consisting of a vegetable parchment, at ...