ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,574, issued on Aug. 18, was assigned to Lankhorst Touwfabrieken B.V. (Sneek, Netherlands).
"Polarizing light filter" was invented by Fernando Andres Eblagon (Maia, Portugal) and Rui Francisco De Neiva Moura Bastos (Baguim do Monte, Portugal).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention is directed to a polarizer comprising an elongated element comprising a polyolefin, wherein the elongated element is unidirectionally drawn at a draw ratio within an overdrawing region and wherein the elongated element has a polarizing effect of at least 5%. The invention further relates to a method for producing said polarizer by drawing an undrawn or ...