If a patent has two patentees, who will pay the annual fee?

Anyone can pay. National Intellectual Property only accepts payment, otherwise it will be terminated. There is no slowdown for the patents owned by the two units. If the patent rights are still useful, first of all, I think there should be two In the patentee agreement, the two patent rights will be determined based on which of the two patent rights creates more benefits through the use of the patent, followed by other methods.