ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,214, issued on March 3, was assigned to Filtrona Pte. Ltd. (Singapore).

"Tobacco smoke filter and method of production" was invented by Ahmad Fashihul Lisan (Sidoarjo, Indonesia), Sudirman Widiarto (Sidoarjo, Indonesia) and Lee Philip O'Donovan (Jarrow, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of producing a flavoured tobacco smoke filter or filter element comprising a self-sustaining longitudinally extending cylindrical core comprising fibres or filaments of tobacco smoke filtering material which are bonded at their points of contact; the method comprising a step of applying a flavouring agent to a longitudinally advanc...