Footwear patent

I'm developing a sole, which has changed a lot (the sole must be patented). If you apply for a patent, can you only apply for a utility model patent or something else?

Answer: If the sole structure changes, such as a heel with wheels, you can apply for a utility model.

I designed the vamp myself. What kind of patent can the upper apply for (appearance? Utility model? )

A: If the design of the upper is fixed and the sales will not change in the future, you can apply for a design. If it is a structural improvement, you can apply for a utility model.

If someone knocks off my upper or sole (mainly my own upper) when it is put on the market, how can I protect my legitimate rights and interests? Can a variety of vamp designs be patented? Is there an example of this explanation?

A: A patent application can only contain one invention, so you can't include multiple vamp designs in one application. There is no such precedent.