Food Warming Tray · 鲁作登字-2023-I-00406702Author/copyright holder: Zheng Zhengpeng; completed and first published: 2022-12-12; registered: 2023-09-26. Original certificate · Work sample
Powered Rotating Hot-Pot Warming Tray · 国作登字-2024-I-00348763Producer/copyright holder: Zheng Zhengpeng; completed: 2024-04-18; first public screening: 2024-08-08; registered: 2024-12-03. Original certificate
Multifunction Food Warming Tray · 国作登字-2024-G-00274221Photographic work; author/copyright holder: Zhongshan Zhifan Technology Co., Ltd.; completed: 2024-07-20; registered: 2024-09-14. Original certificate
Multifunction Food Warming Tray · 国作登字-2024-I-00274220Work created using a method analogous to cinematography; producer/copyright holder: Zhongshan Zhifan Technology Co., Ltd.; completed: 2024-07-20; registered: 2024-09-14. Original certificate
Food Warming Tray · 国作登字-2024-F-00064457Artistic work; author/copyright holder: Zheng Zhengpeng; completed and first published: 2022-12-12; registered: 2024-02-27. Original certificate