Paragraph 2 of Article 22 of the Patent Law stipulates: "Novelty means that no identical invention or utility model has been published in publications at home and abroad before the filing date, has been publicly used in China or is known to the public in other ways, and no identical invention or utility model has been applied to the patent administration department in the State Council by others and recorded in the patent application documents published after the filing date." According to the provisions of this article, publicity includes "public publication in domestic and foreign publications", "public use in China", "known to the public in other ways" and "filing an application with the patent administration department of the State Council and recording it in the patent application documents published after the filing date" (i.e. conflict application), in which public use includes production and sales, so items A, B, C and D all belong to the publicity mentioned in China's patent law.