From the Melitta website: Melitta's history begins in 1908 in Dresden with the invention of the coffee filter. Melitta Bentz had long been disturbed by the unpleasant coffee grounds in her cup, which clouded her pure coffee enjoyment.
Her efforts to resolve the problem were finally rewarded on June 20, 1908: the Imperial Patent Office in Berlin awarded patent protection for her "filtration-paper-based coffee filter with rounded and recessed bottom perforated by slanting flow-through holes." A complicated description of a simple idea: the coffee filter with filter paper was born! Created from an old tin pot with a few holes in the bottom and a piece of her son's school blotting paper.
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