You should be willing. The key is whether it is useful. I used to receive letters and calls from inventors at the technical center of automobile companies, but in my experience, there has never been a case where it can be applied. There are basically two situations. , one is that patents have been registered abroad for a long time, but the inventor is not aware of it, and it has not been adopted at home and abroad so far, because the objective conditions are not currently met, but there is only one such case. Others are inventions that are not inventions, such as perpetual motion machines and safety seats