Introduction
The judgement in InterDigital Patent Holdings Inc. & Anr. v. Shenzhen Transsion Holdings Co. Ltd & Ors. is a significant contribution to the evolving jurisprudence on Standard Essential Patents (SEPs) and Fair, Reasonable, and Non-Discriminatory (FRAND) licensing terms in India.
Handled by the High Court of Delhi, this case underscores the court’s authority to direct pro tem security payments in complex patent infringement suits even before a detailed examination of merits is conducted.
This judgement is not only relevant to the immediate parties but also sets an important precedent for future SEPs-related disputes in the telecommunication sector and potentially other industries as well.
The decision emphasises the necessity of balancing the interests of SEP holders and implementers, which has far-reaching implications for litigants, practitioners, and businesses globally.
Factual and Procedural Background
The plaintiffs, InterDigital Patent Holdings Inc. and its parent company, are prominent research and innovation firms with a substantial portfolio of patents related to wireless and video communication technologies.
They claimed that their technological innovations, protected by over 31,500 patents and applications globally (including over 1,000 in India), form the backbone of advanced technologies like 2G, 3G, 4G, 5G, and HEVC.
They have committed to granting licenses to their standard essential patents (SEPs) to implementers of ETSI wireless communications standards on fair, reasonable, and non-discriminatory (FRAND) terms.
The plaintiffs alleged that the defendants, Shenzhen Transsion Holdings Co Ltd and its Indian subsidiaries, had been manufacturing and selling mobile phones under brands like ITEL, INFINIX, and TECNO since April 2016.
These phones supposedly utilise the plaintiffs’ SEPs without authorisation or licensure, amounting to infringement of several specified Indian patents.
The plaintiffs contended that despite numerous attempts since 2019 to negotiate a licensing agreement, the defendants had not demonstrated true willingness to enter into a FRAND licence, thereby rendering them unwilling licensees.
Consequently, the plaintiffs filed a suit seeking, inter alia, a direction to the defendants for the payment of pro tem security directly to them for the unlicensed manufacture, import, and sale of compliant devices.
They based their request on the FRAND offers they had made.
The defendants countered by challenging the validity and essentiality of the claimed SEPs, arguing that there is no presumption of validity just because patents have been declared essential.
They emphasised that Standard Setting Organisations (SSOs) do not verify essentiality or prescribe FRAND terms, leaving these aspects to be determined by courts on a case-by-case basis.
They further maintained that they had engaged in negotiations and technical discussions in good faith and questioned the basis of plaintiffs’ royalty demands.
The proceedings before the lower authorities or the initial stages of the suit culminated in the present applications filed by the plaintiffs, under Section 151 of the Code of Civil Procedure, 1908, specifically seeking pro tem security payment.
This led to the judgement in question, focusing purely on the issue of pro tem security rather than the underlying claims of infringement or validity of patents.
Background Highlights
- InterDigital claimed infringement of its Standard Essential Patents (SEPs).
- The dispute related to mobile devices sold under ITEL, INFINIX, and TECNO brands.
- The plaintiffs alleged failure of FRAND licensing negotiations.
- The defendants disputed patent validity, essentiality, and royalty calculations.
- The immediate issue before the Court concerned pro tem security.
Dispute Before the Court
The primary dispute before the Court revolved around whether the plaintiffs were entitled to receive pro tem security payment from the defendants during the pendency of the main patent infringement suit.
The plaintiffs, through learned counsel, contended that pro tem security was necessary to secure their rights during the lengthy litigation process, emphasising their standing as a leading technology developer with a tried and tested patent portfolio.
They presented examples where foreign courts had upheld the validity and essentiality of some of their patents and argued that the defendants, by continuing to sell their products without a licence, were operating as unwilling licensees, gaining an unfair advantage.
The defendants robustly contested the demand.
Their core argument was that the plaintiffs had failed to establish a prima facie case of essentiality and validity for their claimed SEPs, pointing out that certain patents in the plaintiffs’ portfolio had been invalidated in other jurisdictions.
They stressed that SSOs like ETSI do not vouch for the accuracy or essentiality of declared patents.
Furthermore, they challenged the plaintiffs’ lack of transparency regarding third-party license agreements (TPLAs) and economic details used to derive the proposed royalty rates.
They also argued against making pro tem security a punitive measure.
The competing contentions in essence brought out a conflict between securing the interests of patent holders and protecting implementers from potentially exorbitant demands without thorough examination of claims.
Key Contentions of Both Parties
| Plaintiffs’ Contentions | Defendants’ Contentions |
|---|---|
| Pro tem security was necessary during litigation. | No prima facie proof of patent validity and essentiality. |
| Defendants were unwilling licensees. | Some patents had been invalidated abroad. |
| Foreign decisions supported the patent portfolio. | SSOs do not certify essentiality. |
| FRAND offers had already been made. | Royalty calculations lacked transparency. |
| Continued sales caused an unfair advantage. | Pro tem security should not become punitive. |
Reasoning and Analysis of the Court
The court’s reasoning was centred around the concepts of balance of equities and the lower threshold of evidence required for pro tem security orders compared to interim injunctions.
Drawing heavily from established Indian legal precedents such as Dolby vs Lava and Nokia vs Oppo, the Court clarified that pro tem orders are essentially temporary arrangements aimed at balancing the interests of both parties until final disposal.
The Court explicitly noted that while a prima facie finding on essentiality and validity is generally necessary, the level of scrutiny at this stage is significantly lower than that required for granting an interim injunction.
Surrounding factors, including the number of licenses already entered into by the SEP holder, successful enforcement in other courts, and previously passed pro tem orders, are relevant considerations.
In addressing the defendants’ challenges to patent validity and essentiality, the Court considered the plaintiffs’ successful foreign court decisions regarding certain patent counterparts, viewing them as aligned with their prima facie observations, although not binding.
Crucially, the Court rejected the defendants’ demand for mandatory disclosure of TPLAs at this pro tem stage, stating that non-furnishing of TPLAs is irrelevant when the FRAND rate is not being finally determined.
The Court also weighed the conduct of both parties, taking note of the defendants’ sales within India and their lack of pro tem security offers despite continued product sales.
Furthermore, the Court rejected the compartmentalised view of evaluating only Indian patents, recognising the interconnected nature of 3G, 4G, and 5G technologies.
The court’s holistic interpretation prioritised overall fairness over technicalities, aiming to secure the patent holder without halting the defendants’ operations.
Key Observations of the Court
- Balance of equities remains the governing principle.
- The evidentiary threshold for pro tem security is comparatively lower.
- Foreign judgements may support a prima facie assessment.
- Disclosure of TPLAs is unnecessary at the pro tem stage.
- The SEP portfolio should be viewed holistically.
- The Court sought to protect both patent rights and ongoing commercial operations.
Final Decision of the Court
The High Court of Delhi ruled partially in favour of the plaintiffs, directing the defendants to deposit a substantial pro tem security amount or, alternatively, furnish an unconditional bank guarantee of equivalent value.
This decision does not decide the final royalty rate or the outcome of the patent infringement claims but provides an equitable interregnum arrangement.
The plaintiffs and defendants were allowed to apply for unredacted copies of the order, indicating the confidential nature of commercial details involved.
This judgement marks a significant development in protecting patent holders’ interests in SEPs-related disputes within the Indian legal landscape.
Point of Law Settled
The InterDigital judgement settled several key points of law pertaining to SEPs and pro tem security in India.
- The Court has the authority to order pro tem security payments under Section 151 of the Code of Civil Procedure, 1908, based on the principle of balance of equities.
- The evidentiary threshold for pro tem security is lower than that for interim injunctions.
- A detailed exploration of the essentiality and validity of patents is not required at the pro tem stage, and courts can form a prima facie view considering surrounding factors.
- Mandatory disclosure of third-party licence agreements (TPLAs) is not a prerequisite for determining pro tem security.
- The entire SEP portfolio can be considered for evaluating pro tem security, given the enmeshed nature of wireless technologies.
This judgement reinforces the proactive approach of Indian courts in managing complex patent litigations, providing a structured mechanism to protect the interests of SEP holders and maintain a fair playground for all market participants in the realm of advanced communication technologies.
Case Details
| Title of the Case | InterDigital Patent Holdings Inc. & Anr. Vs. Shenzhen Transsion Holdings Co. Ltd & Ors. |
|---|---|
| Date of Judgment/Order | 01.07.2026 |
| Case Number | CS(COMM) 1045/2025 CS(COMM) 1046/2025 |
| Neutral Citation | 2026:DHC:5256 |
| Name of Court | High Court of Delhi |
| Name of the Honourable Judge | Justice Tushar Rao Gedela |
| Written By | Advocate Ajay Amitabh Suman, IP Adjutor [Patent and Trademark Attorney], High Court of Delhi |
Disclaimer
Images used herein do not reflect actual images used in Judgement, and the same are for illustrative purposes only.
Readers are advised not to treat this as a substitute for legal advice, as it may contain errors in perception, interpretation, and presentation.
