Excuse me, is alloy material the object of patent protection?

alloy materials should be protected objects belonging to the product category. However, alloy materials are inventions, not practical models. Invention refers to a new technical scheme proposed for a product, method or its improvement. Utility model refers to a new technical scheme suitable for practical use for the shape, structure or combination of products. You applied the definition of utility model protection to the object of invention protection, so you came to a wrong conclusion. The provisions of the patent law on authorized objects are quoted as follows for your reference.

article 2 inventions mentioned in this law refer to inventions, utility models and designs.

invention refers to a new technical scheme proposed for a product, method or its improvement.

utility model refers to a new practical technical scheme for the shape, structure or combination of products.

appearance design refers to a new design that is aesthetically pleasing and suitable for industrial application, which is based on the shape, pattern or their combination of products and the combination of color, shape and pattern.

Article 25 No patent right shall be granted for the following items:

(1) Scientific discovery;

(2) rules and methods of intellectual activities;

(3) methods of diagnosis and treatment of diseases;

(4) animal and plant varieties;

(5) substances obtained by nuclear transformation;

(6) the design that mainly serves as a logo for the pattern, color or the combination of the two of the plane printed matter.

the production method of the products listed in item (4) of the preceding paragraph may be granted a patent right in accordance with the provisions of this law.