What types of issues commonly lead to patent infringement in Singapore?
Patent infringement commonly arises where a competitor manufactures, sells, or uses a product or process that falls within the scope of another party’s granted patent claims, whether through independent development that happens to overlap with the patented invention or through deliberate copying.
Disputes frequently arise in fast moving technology and manufacturing sectors, where competing businesses may develop similar solutions to the same technical problem, making it important for businesses developing new products to conduct freedom to operate searches to identify existing patents that could be infringed by their planned activities.
Infringement can also arise from former business relationships, such as a former licensee continuing to use patented technology after their licence has expired or been terminated, or a former joint venture partner continuing to use technology developed during the collaboration without continued authorisation.
Because patent infringement disputes often involve genuinely complex technical questions about whether a specific product or process actually falls within the scope of the patent claims, patent holders who suspect infringement, and businesses concerned they may be infringing an existing patent, should seek advice from a patent agent or lawyer with relevant technical expertise to properly assess the situation.
Who may start or defend the claim?
The patentee, meaning the registered owner of the patent, or an exclusive licensee with appropriate rights under their licence agreement, generally has standing to bring an infringement claim against a party using the patented invention without authorisation.
The alleged infringer is the defendant in an infringement claim, and commonly raises defences including that their product or process does not actually fall within the scope of the patent claims when properly construed, or a counterclaim that the patent itself is invalid and should never have been granted.
A patent invalidity counterclaim is a particularly significant feature of patent litigation, since a successful invalidity challenge not only defeats the specific infringement claim but can result in the patent being revoked entirely, affecting the patentee’s rights against all other parties, not just the specific defendant in the current proceedings.
Because patent litigation frequently involves both infringement and validity being contested simultaneously, and because the technical and legal issues involved are genuinely complex, both patentees considering an infringement claim and businesses facing an infringement allegation should engage a lawyer experienced in patent litigation, working alongside technical experts as needed, to properly assess their position.
Which court, tribunal or dispute resolution forum should hear the matter?
Patent infringement and validity disputes in Singapore are heard by the General Division of the High Court, reflecting the significant technical and legal complexity typically involved in patent litigation and the High Court’s specialised jurisdiction over intellectual property matters.
The Singapore courts have developed specific procedures for managing the technical complexity of patent litigation, including provisions for expert evidence and, in appropriate cases, procedures to help the court properly understand and assess complex technical issues central to determining infringement and validity.
Where the parties have a contractual relationship containing an arbitration clause, such as an existing licensing agreement, a dispute connected with that specific contractual relationship might be resolved through arbitration, though patent validity itself is generally not considered arbitrable under Singapore law given its effect on rights against the whole world rather than just the parties to the arbitration.
Because patent litigation involves specialised procedures and a forum with particular experience in handling complex technical evidence, patentees and alleged infringers should engage a lawyer experienced specifically in patent litigation before the Singapore courts, given the technical and procedural complexity involved compared with other types of civil litigation.
What time limits apply to bringing or responding to the claim?
Patent infringement claims are generally subject to the limitation periods under the Limitation Act applicable to such claims, typically a number of years from when the cause of action accrued, though patentees should not delay in acting on discovered infringement given the practical importance of stopping ongoing infringing activity.
Where a patentee seeks urgent interim relief, such as an interim injunction to halt ongoing infringement while the substantive claim proceeds, courts generally expect such urgent applications to be brought promptly after the patentee becomes aware of the infringement, making delay potentially damaging to the prospects of obtaining interim relief.
A defendant responding to a patent infringement claim, including one raising an invalidity counterclaim, needs to comply with the applicable procedural timelines for civil litigation in the Singapore courts, and given the complexity of patent litigation, these timelines often involve detailed case management directions specific to the technical issues in dispute.
Because both the general limitation period and the practical importance of prompt action for interim relief are relevant considerations, and because patent litigation involves complex procedural case management, patentees who discover potential infringement should seek legal advice promptly rather than allowing significant time to pass before taking action.
What documents, records and expert evidence may be required?
The granted patent specification and claims, together with the file history of correspondence with IPOS during examination, form foundational documents in patent litigation, since the proper construction of the claims, informed in part by this history, is often central to determining whether infringement has occurred.
Evidence of the allegedly infringing product or process, including technical specifications, samples, or detailed descriptions of how it operates, is essential to assessing whether it falls within the scope of the patent claims when properly compared against the patented invention.
Expert evidence from a person skilled in the relevant technical field is commonly required in patent litigation, both to assist the court in understanding the technical subject matter and to address specific questions such as whether the invention involved an inventive step over the prior art, or whether the allegedly infringing product falls within the claims.
Because patent litigation is generally more technically demanding than other forms of intellectual property litigation, requiring the court to engage with detailed technical evidence, both patentees and alleged infringers should expect to invest significantly in properly prepared expert evidence, and should engage experts with genuine relevant technical expertise in the specific field of the invention.
What remedies, compensation or court orders may be available?
An injunction restraining the infringer from continuing to make, use or sell the infringing product or process is a primary remedy in successful patent infringement claims, reflecting the patentee’s fundamental interest in stopping unauthorised exploitation of their patented invention.
The patentee can generally elect between damages, compensating for the actual loss suffered as a result of the infringement, or an account of profits, requiring the infringer to hand over the profits made from the infringing activity, with the appropriate choice depending on factors such as the relative scale of the patentee’s own lost sales compared with the infringer’s profits.
Where a defendant successfully establishes that the patent is invalid, the court can revoke the patent, which removes the patentee’s rights not just against that specific defendant but against all other parties as well, representing one of the most significant risks a patentee faces in bringing infringement proceedings.
Because the remedies available, and the significant risk of patent revocation if validity is successfully challenged, make patent litigation a high stakes undertaking for patentees, patent holders considering an infringement claim should carefully assess the strength and validity of their own patent with their lawyer before commencing proceedings.
Can the dispute be resolved through negotiation, mediation or arbitration?
Many patent disputes are resolved through direct negotiation, sometimes resulting in a licensing arrangement allowing the alleged infringer to continue their activity in exchange for royalty payments to the patentee, which can be a commercially attractive outcome for both parties compared with the cost and uncertainty of full litigation.
Mediation can be a useful option for patent disputes, particularly where the parties have an ongoing or potential future commercial relationship, such as in the same specific industry, and where a negotiated licensing or coexistence arrangement might better serve both parties’ interests than a court determined outcome.
Arbitration can be used for patent disputes where the parties agree to this route, and is more likely to be relevant where there is an existing contractual relationship, such as a licensing agreement, though pure patent validity questions affecting rights against the whole world are generally not considered suitable for private arbitration under Singapore law.
Because patent litigation is generally costly and carries the significant risk of patent revocation for the patentee, both patentees and alleged infringers should seriously consider whether negotiation, potentially leading to a licensing arrangement, could resolve the dispute more efficiently than proceeding through full contested litigation, particularly where a viable commercial relationship between the parties is possible.
How long may the proceedings take?
Patent infringement litigation in Singapore, given its technical complexity, generally takes considerably longer than many other types of civil litigation, often extending well over a year from commencement to a full trial and judgment, particularly where the case involves detailed expert evidence and a validity counterclaim.
Where the patentee seeks urgent interim relief, such as an interim injunction, this can be obtained on a faster timeline than the full resolution of the underlying dispute, though the substantive infringement and validity issues would still need to proceed to a full determination unless the parties settle in the meantime.
Cases resolved through early negotiation, potentially resulting in a licensing arrangement, can be concluded considerably faster than contested litigation, and given the cost and complexity of full patent litigation, both parties often have a genuine commercial incentive to explore this route before committing to a lengthy court process.
Because the timeline for patent litigation depends heavily on the technical complexity of the specific invention and whether validity is seriously contested, parties should discuss realistic timeline expectations with their patent litigation lawyer based on the specific circumstances of their case from the outset.
What court, expert and legal costs may arise?
Legal fees for patent litigation are generally among the highest of any type of intellectual property dispute, reflecting the technical complexity involved and the detailed legal and factual analysis typically required to properly address both infringement and, commonly, patent validity issues.
Expert witness fees represent a particularly significant cost component in patent litigation, given the near universal need for technical expert evidence to assist the court in understanding the invention and assessing complex questions such as inventive step and claim construction.
Court filing fees and other procedural costs apply throughout the litigation, and while the successful party can generally recover a portion of their costs from the unsuccessful party, this recovery rarely covers the full cost actually incurred, particularly given the substantial expert evidence costs typically involved.
Because the overall cost of patent litigation can be very substantial, often representing one of the most expensive forms of civil litigation in Singapore, patentees and alleged infringers should discuss likely costs in detail with their lawyer at the outset, and should seriously evaluate whether a negotiated resolution could achieve a more proportionate outcome given the significant costs and risks involved in full litigation.
