What Tesla patents did Weilai use?

Weilai didn't use Tesla's patent. On March 2, 2022, Kloc-0, Li Bin, founder, chairman and CEO of Weilai Automobile, said in an interview that Weilai Automobile's technology research and development mainly came from its own investment, and the overall R&D expenditure accounted for the lowest proportion of income in the industry, without using the patented technology obtained by Weilai Automobile. However, he also said that the overall R&D system of Weilai Automobile has great overlap. From electric drive system to BMS to AD full stack, quite a few of them are developed by themselves, and quite a few of them are chatting with friends. In short, Weilai Automobile has a good independent research and development capability, but it does not use Tesla's patented technology.