Filing and Protecting a Short-Term Patent in Hong Kong

What Is a Hong Kong Short-Term Patent?

A hong kong short-term patent grants exclusive rights over an invention for a maximum of eight years. It is designed for inventions with a short commercial life or for situations requiring rapid protection. The Intellectual Property Department (IPD) administers this system alongside the standard patent route and the original grant patent system.

A standard patent can last up to 20 years and requires substantive examination by a designated patent office, the UK, European, or Chinese patent office. A short-term patent follows a simpler process. The IPD examines only formal requirements and whether the invention falls within a prescribed list of excluded subject matter. There is no substantive examination of novelty, inventive step, or industrial applicability at the filing stage. This is a Hong Kong-specific right, providing protection only within the territory. An applicant seeking protection elsewhere must file separately in each jurisdiction.

Short-Term Patent Hong Kong Filing Requirements

To initiate a short-term patent hong kong filing, submit the following to the IPD:

• A completed application form (available from the IPD website)
• A description of the invention, including any drawings necessary to understand it
• One or more claims defining the scope of protection sought
• An abstract summarising the invention
• The prescribed filing fee

The application must be in English or Chinese. If filed in one language, a translation into the other may be required later.

Claims must be clear and concise. They must relate to a single invention or to a group of inventions so linked as to form a single inventive concept. The IPD checks the application for compliance with formal requirements. If the application meets those requirements, the IPD grants the short-term patent and publishes it in the Hong Kong Intellectual Property Journal. The grant date is the date of publication. The filing date is the date on which the IPD receives the application and the prescribed fee. An incomplete application may attract a later filing date.

Hong Kong Short-Term Patent Protection Scope

Hong kong short-term patent protection covers inventions that are new, involve an inventive step, and are capable of industrial application. The IPD does not examine these criteria at the grant stage. The patent is granted on the basis of the applicant's assertion that the invention meets the requirements.

Protection lasts for an initial term of four years from the filing date. The patentee may renew for a second term of four years, giving a total maximum term of eight years. Renewal requires payment of the prescribed renewal fee.

The claims define the scope of protection. The description and drawings interpret the claims. A third party infringes the short-term patent if it makes, uses, sells, or imports the patented invention in Hong Kong without the patentee's consent. The short-term patent does not protect methods of medical treatment or diagnostic methods practised on the human or animal body. It also does not protect plant or animal varieties, or essentially biological processes for the production of plants or animals.

Short-Term Patent vs Standard Patent Hong Kong

The key differences between a short-term patent vs standard patent hong kong are summarised below.

A short-term patent suits inventions with a short commercial life, consumer electronics or fashion items. A standard patent fits inventions that justify a longer period of exclusivity and can withstand substantive examination.

The original grant patent system, introduced in 2019, allows an applicant to apply directly to the IPD for a standard patent without first obtaining a patent from a designated patent office. This route is available only for inventions that have not been the subject of a previous patent application in a designated patent office. The IPD examines the application substantively.

Eligible Inventions and Exclusions

A short-term patent may be granted for any invention that is new, involves an inventive step, and is capable of industrial application. The invention may be a product or a process.

The following are excluded from patent protection:

• Discoveries, scientific theories, and mathematical methods
• Literary, dramatic, musical, or artistic works (these are protected by copyright)
• Schemes, rules, or methods for performing mental acts, playing games, or doing business
• Computer programs (as such)
• Presentations of information

The IPD publishes a list of excluded subject matter in its guidelines. Check whether the invention falls within an excluded category before filing.

Opposition and Revocation

After grant, any person may apply to the IPD to have a short-term patent revoked. The grounds for revocation include:

• The invention is not new or does not involve an inventive step
• The invention is not capable of industrial application
• The patent specification does not disclose the invention clearly and completely
• The patent was granted to a person who was not entitled to it

The IPD may also revoke a short-term patent on its own initiative if it discovers that the patent was granted in error. A third party may challenge validity in infringement proceedings. The court may revoke the patent if it finds that the invention does not meet the patentability criteria.

Relationship with Other IP Rights

A short-term patent is distinct from a registered design, which protects the appearance of a product. A product may be protected by both a short-term patent (for its functional features) and a registered design (for its ornamental features).

A short-term patent is also distinct from a trade mark, which protects a sign that distinguishes goods or services. A trade mark is registered under the Nice Classification system and is examined by the IPD for absolute grounds of refusal and relative grounds (opposition).

Copyright arises automatically on creation and protects original literary, dramatic, musical, and artistic works. It does not require registration. A short-term patent protects inventions, not creative works.

The Personal Data (Privacy) Ordinance (Cap. 486) governs the collection, use, and handling of personal data. It does not affect patent rights directly, but a patentee that collects personal data in the course of its business must comply with the six data protection principles.

Practical Considerations

Before filing a short-term patent application, consider the following.

Search the prior art. The IPD does not examine novelty, but the patentee bears the risk of invalidity if the invention is not new. A search of existing patents and other publications helps assess whether the invention is likely to be novel.

Draft the claims carefully. The claims define the scope of protection. Broad claims may be invalid if they cover prior art. Narrow claims may be easy to design around.

Consider the enforcement strategy. A short-term patent is easier and cheaper to obtain than a standard patent. It is also easier to challenge. Be prepared to prove validity if you seek to enforce it.

File a standard patent application if the invention has long-term commercial value. Use the short-term patent as a placeholder while a standard patent application is being processed.

The IPD publishes a guide to short-term patents on its website. Consult a registered patent agent or a solicitor specialising in intellectual property where professional advice is needed.