Commemoration of Bentz’s coffee filter on its 118th anniversary.
On July 8, 2026, the German Patent and Trade Mark Office, along with the Library of Congress, commemorated the 118th anniversary of Melitta Bentz's pivotal coffee filter innovation. This recognition honored Bentz’s groundbreaking advancements in coffee preparation and celebrated her timeless influence in household innovation. The commemoration underscored her pioneering role as one of the first women in Germany to protect her invention through a formal registration process.