InterDigital wins 5G patent injunction against Transsion in Brazil

A Brazilian court has blocked Transsion from selling 5G devices in the country after ruling that the company infringed two patents held by InterDigital Inc. The 3rd Regional Business Court of Rio de Janeiro issued the preliminary injunction, finding that Transsion used InterDigital's 5G technology without a valid license. For Transsion, which has spent the last several years pushing aggressively into emerging markets including Brazil, the ruling creates an immediate problem in one of South America's largest smartphone markets.

What the court actually decided

The court found infringement on two specific InterDigital 5G patents. It also ruled that InterDigital's licensing offer to Transsion met the FRAND standard, meaning the terms were fair, reasonable, and non-discriminatory. That second finding carries significant weight. When a patent holder's licensing offer is validated as FRAND-compliant by a court, it becomes much harder for the accused infringer to argue that it was unreasonable to refuse the deal. Transsion's position in any subsequent negotiation or appeal is considerably weaker as a result.

Preliminary injunctions in patent cases are not automatic. Courts typically require the patent holder to show a likelihood of success on the merits and some form of irreparable harm if the injunction is not granted. Getting both findings, patent infringement and FRAND validation, in a single preliminary ruling is a strong outcome for InterDigital at this stage of the dispute.

Who InterDigital is and how it makes money

InterDigital is a patent licensing company headquartered in Wilmington, Delaware. It does not manufacture devices. Instead, it holds a large portfolio of patents covering wireless communication standards, including 3G, 4G, and 5G, and generates revenue by licensing those patents to device makers. Its licensees include Apple, Samsung, Huawei, and Sony. The company reported $405 million in revenue for 2023, nearly all of it from licensing fees and royalties.

This business model puts InterDigital in frequent conflict with device manufacturers who want to pay less for access to standard-essential patents. Standard-essential patents, often called SEPs, are patents that cover technology required to comply with an industry standard like 5G. Any company making a 5G device technically needs a license to use them. The dispute with Transsion follows a pattern InterDigital has repeated across multiple jurisdictions, filing suit in courts where it believes it can get favorable rulings to pressure companies into licensing deals.

Transsion's position in Brazil

Transsion is a Chinese smartphone manufacturer best known for its Tecno, Itel, and Infinix brands. It built its initial market position in Africa, where it focused on low-cost devices with features suited to local conditions, including long battery life and cameras optimized for darker skin tones. In recent years, Transsion has expanded into Latin America, Southeast Asia, and parts of South Asia.

Brazil is one of the more active 5G deployment markets in Latin America. Anatel, Brazil's telecommunications regulator, completed its 5G spectrum auction in November 2021, and carriers have been rolling out 5G coverage in major cities since 2022. For a budget device brand trying to grow in Brazil, being blocked from selling 5G-capable phones is a direct hit on the product lineup that matters most right now. Transsion has not publicly commented on the ruling or indicated whether it will appeal.

The broader pattern of SEP litigation

Standard-essential patent disputes have moved across jurisdictions in waves over the past decade. Companies like Qualcomm, Ericsson, Nokia, and InterDigital have all pursued device makers in courts across Europe, Asia, and the Americas, sometimes simultaneously. The strategy is partly about collecting royalties and partly about finding courts that are willing to grant injunctions, since the threat of a sales ban is often what finally brings a reluctant licensee to the negotiating table.

Brazil is a relatively newer venue for this type of litigation. The Rio de Janeiro court's willingness to grant a preliminary injunction and validate a FRAND licensing offer in the same ruling may encourage other patent holders to file in Brazil when pursuing device makers with exposure in the Latin American market. InterDigital has active licensing disputes in multiple other jurisdictions as well, including proceedings in Germany and India involving different companies.

Transsion's next step will likely be to either appeal the preliminary injunction or open formal licensing negotiations with InterDigital. Each month the injunction remains in force is a month of lost 5G device sales in a market the company has been actively trying to grow.