China offers three patent types, and the right one depends on what you invented. An invention patent protects a technical solution and needs substantive examination. A utility model protects product shape or structure after a preliminary review. A design patent protects appearance. Hardware sellers often file more than one type for the same product.
Key takeaways
- Invention patents take about 18 to 36 months and run 20 years from filing; utility models about 10 to 14 months and 10 years; designs about 4 to 8 months and 15 years.
- Only invention patents face substantive examination; utility models and designs face a preliminary review.
- Same-day double filing of an invention plus a utility model is standard practice for structural products.
- The utility model gives an early enforceable right and is surrendered when the invention grants.
- China is first to file, so an early, well-ordered filing matters more than a perfect one.
What can each Chinese patent type protect?
An invention patent covers a new technical solution, which can be a product, a process, a method or a composition, and it is the broadest and most durable of the three. A utility model is narrower: it protects the shape or structure of a product that has a technical function, so it cannot cover a method, a use, or a substance without fixed form. A design patent protects the appearance of a product, its shape, pattern and color combinations, and covers no technical function at all.
Choose by the nature of the asset. A novel folding hinge is structure and function, so it fits a utility model and possibly an invention. A distinctive exterior shell fits a design. A new assembly process fits only an invention, because a method cannot be a utility model. Our invention, utility model or design guide walks through the boundaries.
How does examination differ, and how long does each take?
| Type | Protects | Examination | Typical grant | Term |
|---|---|---|---|---|
| Invention | Technical solution | Substantive | About 18-36 months | 20 years from filing |
| Utility model | Product shape or structure | Preliminary review only | About 10-14 months | 10 years from filing |
| Design | Appearance | Preliminary review | About 4-8 months | 15 years from filing |
The difference is a trade-off between speed and certainty. An invention patent is examined against the prior art, so a granted claim is more robust, but it can take up to three years. A utility model skips substantive novelty examination, so it grants faster, yet its validity is untested and a competitor can attack it later. A design sits in between on time and carries the same untested-risk problem.
What is double filing and when does it help?
For a product whose value is its structure, the standard China move is a same-day double filing: one invention application and one utility model application describing the same technical solution. Because they are filed the same day, you are not penalized for the overlap. The utility model grants first and gives you an enforceable right you can use during the long invention pendency.
When the invention later grants, you elect to surrender the utility model so that only one right stands. The practical effect is a bridge: fast protection from day one, upgraded to a stronger, longer right once examination completes. It suits products with real technical substance and a long expected sales life. Related questions are answered in the patent FAQ.
How should a hardware seller sequence China filings?
Start by splitting the product into assets: the mechanism (invention, and likely a utility model), the structure (utility model), and the look (design). China is first to file, so lock your date before any public disclosure, sale or listing, because there is no reliable grace period at home to fall back on.
Then think outward. Patents and trademarks carry a 12-month priority window and designs a 6-month window, so a well-ordered Chinese filing becomes the base for later foreign filings. For an invention going abroad, the usual route is a PCT application within 12 months, which you can read about on our PCT page.
Where do these rights fit in enforcement?
A granted right is what makes a complaint credible. A utility model or a registered design gives you something concrete to point at in a takedown, which tends to succeed more reliably than an assertion. Because utility models and designs are not examined for novelty, keep evidence of originality and be ready to defend validity if the other side counters.
We align the Chinese filings with your marketplace strategy and later foreign filings; see our services. A prior-art or prior-design search precedes every filing, and once documents and payment are confirmed the filing goes in within 48 hours.
Frequently asked questions
Can a method or software be a utility model in China?
No. A utility model is limited to the shape or structure of a product with a technical function, so processes, methods and substances without fixed form cannot be claimed that way. Those assets can only go into an invention application, which faces substantive examination and takes longer. If your value is in a method, budget for the slower invention route from the start.
Is double filing of an invention and a utility model allowed?
Yes, and it is standard for structural products when both are filed on the same day. The utility model grants early and gives you a usable right; when the invention grants you surrender the utility model so only one patent stands. Filing on the same day is what keeps the two from blocking each other, so sequence the two applications together rather than months apart.
Do Chinese designs get examined for novelty?
No substantive novelty search is performed, only a preliminary review, so a design can be granted even if a similar one already exists. That means the grant itself is not proof of validity, and a competitor can petition to invalidate it. Keep dated original files so you can defend the design if challenged later.
How early should I file before launching in China?
File before any public disclosure, sale or listing, because China is first to file and offers you no dependable grace period to rely on. Once the Chinese date is locked, plan foreign filings inside the 12-month patent and trademark and 6-month design priority windows. Share your launch schedule on the contact page and we will set the order.