(1) Option AD: Patented products, products directly obtained according to the patent method before the termination of the patent right or their packages are marked with patent marks according to law, and it is not an act of counterfeiting patents to promise to sell or sell the products after the termination of the patent right. (2) Option BC: Patent infringement includes "the act of exploiting a patent for the purpose of production and operation without the permission of the patentee" and counterfeiting a patent; Option b belongs to patent infringement, but it does not belong to patent counterfeiting; Option C belongs to counterfeit patent in patent infringement.