Patents
Technical products or methods; substantive examination; 20-year term from filing.
Practical product shape or structure; preliminary examination; 10-year term.
The visual appearance of a whole or part of a product; 15-year term.
One product may justify more than one type of right.
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Contact UsAn invention patent protects a new technical solution relating to a product, process, or improvement. A utility model is limited to a practical technical solution concerning the shape, structure, or combination of a product. A design patent protects the visual design of the whole or a part of a product, including relevant combinations of shape, pattern, and color.
The correct question is therefore not which right is strongest in the abstract. It is which feature a competitor would copy and which form of evidence will make that copying easiest to prove.
Use an invention application when the commercial advantage lies in a technical principle, system, composition, manufacturing method, or other subject matter that needs substantive claims. Examination is deeper and usually slower, but a granted invention patent can provide a longer term and claims tailored to functional relationships rather than one physical embodiment.
The application needs enough technical disclosure to support the desired scope. Filing broad ambitions with thin examples creates enablement, support, and amendment problems later.
A utility model can be useful for mechanical products, assemblies, tools, components, and structural improvements that can be shown through product features and drawings. Preliminary examination can produce a right sooner, which may match short product cycles or a need for an early enforcement position.
Faster grant does not guarantee validity. Before enforcement, the prior art and the stability of the claims should be assessed, and a patent-right evaluation report may be relevant in certain proceedings.
Choose design protection when market value lies in appearance: a product silhouette, interface, component, packaging form, or visual combination. The drawings define the protected design, so view consistency, disclaimers, broken lines, product naming, and the decision between whole and partial design all matter.
A design filing should be coordinated with trademark and copyright strategy. Each right has a different test and evidentiary role; overlapping protection can be commercially useful when planned before disclosure.
Map the product into technical function, physical structure, visual appearance, software, brand, and confidential know-how. Then assign the appropriate protection to each layer. This often produces a more resilient and enforceable portfolio than forcing the entire product into a single application.
CNIPA: Patent Law of the People's Republic of China
CNIPA: Rules for the Implementation of the Patent Law (2023 Revision)
This article is general information about Chinese IP practice, not legal advice for a specific matter. It was last reviewed on 2026-08-21. Rules, fees, and timelines change; confirm current requirements before acting. For advice on your situation, contact our team.