If the product is different from the prior art in appearance, shape, pattern, etc. , you can apply for a patent for design;
If the composition or structure changes, you can apply for a utility model or invention patent.
2. Process:
Design patent, need to provide photos of the product;
For utility models or invention patents, it is necessary to write the technical scheme clearly.
Others are best left to the agent to write the application documents, which will save a lot of effort and avoid some unnecessary mistakes.
Please feel free to call me if you need help.