Why can't an invention like intermittent wiper be patented in China?

First of all, I personally think that "intermittent wiper" should belong to the patentable object. Because it does not belong to the object that cannot be authorized under the patent law. The patent law has made some exclusionary provisions on the object of patent protection:

Article 25 No patent right shall be granted to the following projects:

(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.

Secondly, although the "intermittent wiper" belongs to the object that can be authorized, it may not be patented because it does not meet the conditions for obtaining authorization, such as lack of novelty and creativity. The patent law stipulates that a patent application must meet the following conditions before it can be authorized:

Article 22 An invention or utility model that has been granted a patent right shall be novel, creative and practical.

Novelty means that the invention or utility model does not belong to the prior art; No unit or individual filed an application for the same invention or utility model with the administrative department for patent in the State Council before the filing date, and it was recorded in the patent application documents published or announced after the filing date.

Creativity means that compared with the prior art, the invention has outstanding substantive features and remarkable progress, and the utility model has substantive features and progress.

Practicality means that the invention or utility model can be manufactured or used and can produce positive effects.

The existing technology mentioned in this law refers to the technology known to the public at home and abroad before the date of application.

Article 23 A design that has been granted a patent right does not belong to an existing design; Before the filing date, no unit or individual has filed an application with the patent administration department of the State Council for the same design, and it is recorded in the patent documents published after the filing date.

Compared with the existing design or the combination of existing design features, the patented design should have obvious differences.

A design that has been granted a patent right shall not conflict with the legal rights that others have obtained before the date of application.

Existing designs as mentioned in this Law refer to designs known to the public at home and abroad before the date of application.

In addition, "intermittent wiper" can file different types of patent applications, and the invention has the highest requirement for creativity. You can try practical models, but the requirements for creativity are slightly lower. The patent law has made relevant provisions on the types of patent rights:

Article 2 Inventions and creations 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 with aesthetic feeling and suitable for industrial application based on the shape, pattern or combination of products and the combination of colors, shapes and patterns.