Copyright is the right enjoyed by the right holder to the intellectual achievements created by him according to law. B Wrong, the content of the exclusive right to use a trademark only includes property rights, and the personal rights of trademark designers are protected by copyright law. C is correct. Inventions, utility models and designs granted patent rights shall be novel. D Correct, the protection period of invention patent is longer than that of utility model patent. The term of protection of invention patents is 20 years, and that of design patents is 15 years.