Article 25 of the Patent Law stipulates that:
No patent right shall be granted for the following items:
(1) scientific discoveries;
(2) rules and methods of intellectual activities;
(3) Methods of diagnosis and treatment of diseases;
(4) Species of animals and plants;
(5) substances obtained by nuclear transformation;
(six) the design of the pattern, color or the combination of the two.
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.
"Inventions not belonging to the treatment method" in 4.3.2.2 part of the Patent Examination Guide stipulates that the following methods are examples not belonging to the treatment method, and according to Item (3) of Paragraph 1 of Article 25 of the Patent Law, the patent right shall not be refused.
(5) Simple cosmetic methods, that is, cosmetic methods that do not involve the human body or cause trauma, include body deodorization, protection, decoration or modification methods that can be implemented locally on the skin, hair, nails, teeth, etc. for non-therapeutic purposes.
Section 3.2.4 of the Patent Examination Guide "Surgical Methods for Non-therapeutic Purposes in Human Body or Animals"
Surgical methods include therapeutic and non-therapeutic surgical methods. The surgical method for the purpose of treatment belongs to the object that no patent right is granted in Section 4.3 of Chapter 1 of this part; Non-therapeutic surgical methods are not practical because they are aimed at living people or animals and cannot be used in industry. For example, a surgical method for cosmetic purposes, or a surgical method for extracting calculus bovis from live cattle, and a surgical method for auxiliary diagnosis, such as a surgical method before coronary angiography.