ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,198, issued on July 28, was assigned to DOUNOR SAS (Neuville en Ferrain, France).

"Non-woven of spunbonded thermoplastic filaments having improved weldability properties and method for manufacturing such a non-woven" was invented by Stephanie Hoyas (Tourcoing, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The object of the present disclosure is a non-woven of spunbonded thermoplastic filaments comprising in a characteristic way, at least 95% by mass (g) of its surface mass (g/m2) of at least two polypropylene A and B polymers, said filaments having a titer of less than or equal to 1.3 dtex, said non-woven having a surface mass of less than o...