ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,671, issued on Dec. 9, was assigned to PLASTIC INNOVATION GMBH (Ottensheim, Austria).
"Method of manufacturing a two-wheeler frame" was invented by Umut Cakmak (Modling, Austria) and Christian Wolfsberger (Ottensheim, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an injection molding method of manufacturing a two-wheeler frame in which a melt of a thermoplastic is injected into a cavity of an injection molding tool before a portion of the plastic melt is displaced from the cavity again by a subsequent fluid injection to form the inner hollow space of the tubular frame, with the fluid flowing upward in the course of t...