1, product development and patent application are carried out in parallel, not successively. At the end of the project, it is also the day when the patent layout is summarized.
2. Even after the technical scheme of product development is released, if the product is novel, creative and practical in patent application, you can apply for a patent. For some important product research and development projects, sometimes even patent applications are submitted before the scheme is mature, and new applications are given priority after the scheme is mature.