ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,843, issued on Aug. 18, was assigned to Kiefel GmbH (Freilassing, Germany).

"Process for the pretreatment of fibrous material, pretreatment chamber and fiber molding plant" was invented by Matthias Hausmann (Unken, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a process for the pretreatment of fibrous material in a production process for producing three-dimensional products, to a pretreatment chamber for the pretreatment of fibrous material, and to a fiber molding plant having at least one pretreatment chamber. By pretreating relatively dry fiber material, the shaping step in a manufacturing process can be ...