From the ArcaMax Publishing, Trivia Newsletter:
http://www.arcamax.com/news/trivia/s-460859-149932
The coffee filter was invented by Melitta Bentz, in Germany in 1908. She pierced holes in a tin container, put a circular piece of absorbent paper in the bottom of it and put her creation over a coffee pot.
This news arrived on: 12/12/2008