Context:
South Korean research and licensing company Wilus is suing Askey, a subsidiary of Taiwanese tech company ASUS that makes routers and related equipment, in the United States District Court for the Eastern District of Texas for infringement of Wi-Fi standard-essential patents (SEPs).
- Askey has effectively admitted to infringing several Wilus SEPs, but has not agreed to reasonable and non-discriminatory (RAND) licensing terms.
- In light of this, Wilus filed a motion seeking a permanent injunction (February 19, 2026 ip fray article). Given that it has been widely considered all but impossible for a SEP holder to obtain an injunction in the U.S. for the past two decades, Wilusâs motion came as a surprisingâand potentially highly significantâdevelopment.
- Wilus is a licensor in Sisvelâs Wi-Fi 6 patent pool. Sisvel also acts as Wilusâs licensing agent with regards to prospective bilateral deals. Askey would likely be able to settle the dispute by taking a pool license from Sisvel.
Whatâs new: Access Advance, another SEP pool operator, is seeking to submit an amicus curiae brief in support of Wilusâs request for an injunction against Askey.
- Access Advance argues that âpatent holdoutâ by a âbad faith infringerâ goes against the spirit of the patent system as envisioned in the U.S. Constitution and Patent Act; encourages âfree ridingâ on othersâ R&D investments and therefore discourages further such investment; and âdistorts the patent licensing marketâ.
- It further suggests that damages alone do not provide adequate remedy for infringement and âholdoutâ in general.
Direct impact: Access Advanceâs motion to submit an amicus brief will likely be granted, consistent with the liberal standards applied by U.S. courts. That said, the filing for the motion by itself has impact, not least in the sense of providing âmoral supportâ for Wilus – and, by extension, its licensing partner and pool administrator Sisvel.
Wider ramifications:
- Unlike Sisvel, Access Advance does not itself license Wi-Fi relevant SEPs. It operates pools for video codec standards. Nevertheless, itâand other patent pool operatorsâwould stand to benefit from a U.S. legal environment that is more willing to order injunctions against SEP infringements.
- Therefore, it would be game-changing if Wilus were to be successful in its bid for the first U.S. SEP injunction in two decades. That would make the U.S. a much more attractive venue for SEP enforcement, and would complement its already positive reputation when it comes to patent damages.
Here is Access Advanceâs amicus brief:
United States next?
The United States Department of Justice (DoJ) and United States Patent & Trademark Office (USPTO) appear to have taken an increasingly pro-injunction stance of late, adding grist to the mill of those who would like to see SEP injunctions return to the scene in U.S. litigation (February 28, 2026 ip fray article). Notable examples include:
- The DoJâs Statement of Interest in Disney v. InterDigital (United States District Court for the District of Delaware, case no. 1:25-cv-00996-MN) rejecting antitrust claims related to SEP enforcement (October 6, 2025 ip fray article).
- A joint Statement of Interest from the DoJ and USPTO in Radian Memory Systems v. Samsung Electronics (United States District Court for the Eastern District of Texas, case no. 2:24-cv-1073; meanwhile settled), supporting the availability of preliminary injunctions to patent holders.
Wilusâs case against Askey would seem to be a prime opportunity for the U.S. government agencies to again state support for injunctive relief. Given that Access Advance has now âbroken the iceâ, there may be a chance that the DoJ or the USPTOâor bothâcould be next.
MPEG LA supported Avanci against Continental
This is not the first time for one pool administrator to support another through an amicus brief. MPEG LA (meanwhile acquired by Via) did so (PDF) when Continental was suing Avanci and some of its licensors on antitrust grounds, a case that was thrown out by the district court and which the appeals court declined to revive.
Court and counsel
United States District Court for the Eastern District of Texas (Marshall Division), Judge J. Rodney Gilstrap.
Access Advance is being represented by Cherry Johnson Siegmund Jamesâs Gregory P. Love, and Sullivan & Cromwellâs Garrard R. Beeney and Navraj S. Dhillon.
