ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,823, issued on March 18, was assigned to ESSITY HYGIENE AND HEALTH AKTIEBOLAG (Gothenburg, Sweden).

"Composite nonwoven sheet material" was invented by Maria Bogren (Gothenburg, Sweden) and Hannu Ahoniemi (Gothenburg, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composite nonwoven sheet material includes pulp fibers, a reinforcement material and microfibers. The sheet material has one pulp-enriched first outer layer and one microfiber-enriched second outer layer, the reinforcement material is thereby interposed between the pulp-enriched first outer layer and the microfiber-enriched second outer layer and the pulp fibers and the microfibe...