See what you can do. You can apply for patent protection.
You applied for the mode of production. You can apply for a patent for invention or a patent for utility model, and I'll give you an opinion after seeing your details.
If you have a trademark, it is not too late to consider it when it is almost mature in the later stage.
Because trademark registration in China is at least self-employed, individuals can apply for Hongkong trademark registration.
If you need help, go to space to learn.