A coated filter bag for use in cold or hot drinks, in particular, a novel method for administration of pharmaceutical actives, supplemental nutrients, genetically derived materials, or other beneficial agents using a coated filter bag that includes at least one agent that solubilizes when in contact...http://www.google.de/patents/US7090858?utm_source=gb-gplus-sharePatent US7090858 - Coated filter bag material for oral administration of medicament in liquid and methods of making same
