Answer: The trademark pattern must be clear and easy to paste, printed on smooth and durable paper or replaced by a photo. The length or width should be no more than 10 cm and no less than 5 cm. When applying to register a color trademark, 10 copies of colored drawings and 2 copies of black and white drafts should be submitted for each application. When applying for registration of a three-dimensional logo trademark, a drawing that can determine the three-dimensional shape should be submitted. Trademark Registration at the Trademark Office