ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,798, issued on Oct. 7, was assigned to RKW SE (Mannheim, Germany).
"Elastic nappy element" was invented by Christoph Willing (Vreden, Germany), Paul Waller (Rosenheim, Germany) and Michael Scherer (Flintsbach im Inn, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elastic nappy element that includes an elastic layer (1) and outer layers (2, 3) made of a non-woven fabric. The nappy element has connecting regions (4, 8) for connecting the outer layers (2, 3) to the elastic layer (1). These connecting regions (4, 8) include zones (7, 9) in which a form-fitting bond of non-woven material and solidified material of the elastic layer (1) is forme...