China’s Utility Model Protection Subject Matter: A Guide to CNIPA’s Assessment Criteria
In November 2023, China’s National Intellectual Property Administration (CNIPA) issued the “Guide on Determining the Subject Matter of Utility Model Patent Protection” (the Guide), systematically setting out how to assess the boundaries of utility model protection in China. This article reviews the practical points of the Guide alongside the Patent Law and the Guidelines for Patent Examination.
1. What Is a Utility Model in China
Under Article 2(3) of China’s Patent Law, a utility model is a new technical solution proposed for the shape, structure, or their combination of a product, suitable for practical use. Unlike an invention patent, a utility model protects only “products” not “methods”, has a lower inventiveness threshold, and undergoes formal examination (no substantive examination), offering a faster and cheaper route for incremental improvements.
2. Core Boundaries of Utility Model Subject Matter
a. It protects “products”, not “methods”
A utility model can only cover tangible products. Methods, processes, or uses are not eligible; for example, a “welding method” or a “data-processing method” must be filed as an invention patent.
b. It concerns shape or structure of a product
“Shape” refers to the external three-dimensional form; “structure” refers to the arrangement and connections of internal components. A mere material substitution (improving only material properties) generally does not constitute a structural improvement, and gaseous, liquid, or powder products with no fixed shape are usually excluded.
c. It must be a practical new technical solution
The claims must describe a technical solution that solves a technical problem by technical means and produces a technical effect, not a purely aesthetic design or a rule of intellectual activity.
3. Matters Explicitly Outside Utility Model Protection
The Guide lists typical exclusions, including method claims; claims defined only by material composition; flat printed matter serving mainly as indication; rules and methods of games or intellectual activity; diagnosis and treatment of diseases; animal and plant varieties; and known materials made by a specific process.
4. A Three-Step Test for Subject Matter
Step 1: is it a “product”? Step 2: does it improve the shape or structure (or their combination) of a product? Step 3: is the claimed matter a technical solution? Only if all three are met may it fall within utility model protection.
5. Utility Model vs. Invention Patent
A utility model protects products only; its inventiveness requirement is “substantive features and progress” (lower than an invention’s “prominent substantive features and notable progress”); it is granted after formal examination; and its term is ten years from filing. An invention protects both products and methods, requires substantive examination, and lasts twenty years.
6. Practical Filing Tips
Avoid putting methods into independent claims; fully disclose shape/structure improvements in the description; consider a dual utility-model-plus-invention strategy for novel improvements; and after grant, monitor annual-fee deadlines. See our patent annual-fee monitor and IP resources.
FAQ
Q: How does a utility model differ from a design patent?
A: A utility model protects the technical solution embodied in a product’s shape or structure, while a design patent protects the new visual design of a product’s shape, pattern, or color. One emphasizes function, the other appearance.
Q: Can software be filed as a utility model?
A: Standalone software, algorithms, or business methods are not eligible; but if software is combined with specific hardware and improves a product’s structure technically, it may be claimed as a product.
Q: Can a material formula be a utility model?
A: A formula defined only by composition or content is generally not a utility model and should be filed as an invention; if the material changes a product’s internal structure, it may be different.
Q: Are annual fees due after a utility model is granted?
A: Yes. Annual fees are payable from the grant year; failure to pay beyond the grace period terminates the right. A renewal alert mechanism is advisable.
Source
Source: China National Intellectual Property Administration (CNIPA), “Guide on Determining the Subject Matter of Utility Model Patent Protection” (Policy Interpretation column, 2023-11-03). Original link: https://www.cnipa.gov.cn/art/2023/11/3/art_66_188404.html
This article introduces the intellectual property system of the People’s Republic of China (China); please refer to the latest official provisions for specifics.