Handmade stainless steel keychain patent application

there are three types of patent applications: invention, utility model and design. You may apply for an invention patent for a new technical scheme proposed for a product, method or improvement; You can apply for a patent for utility model for a new technical scheme that is suitable for practical use according to the shape, structure or combination of products; A new design that is aesthetically pleasing and suitable for industrial application is made according to the shape, pattern or their combination of products and the combination of color and shape and pattern, and can apply for a patent for design. Is that what you want to apply for?