Perfume types reflect the concentration of aromatic compounds in a solvent, which in fine fragrance is typically ethanol or a mix of water and ethanol. Various sources differ considerably in the definitions of perfume types. perfume's scent is not eligible for trademark protection because the scent serves as the functional purpose of the product. In 2006 the Dutch Supreme Court granted copyright protection to Lancome 's perfume Tresor (Lancome v. Kecofa).