Context: Late last week we reported that multi-brand truck maker PACCAR (a company headquartered in the Pacific Northwest of the United States) is facing cellular standard-essential patent (SEP) infringement lawsuits by Acer in the Munich I Regional Court and by a Longhorn entity named L2 Mobile in the United States District Court for the Eastern District of Texas (July 19, 2025 ip fray article). In the article we just linked to, you can find further information about PACCAR.
What’s new: A second 4G SEP case against PACCAR in the Eastern District of Texas has been discovered, and it was filed by Acer yesterday (July 23, 2025).
Direct impact: Acer is now the first cellular SEP holder to sue PACCAR on two different continents.
Wider ramifications: It would not be a surprise to see Longhorn sue in Europe, too, as it has done so before against others. The combination of U.S. damages-oriented litigation, particularly in the leading federal district courts for patent litigation in Texas, and European injunction-happy courts can be a very effective enforcement strategy if a company has a strong presence on both sides of the Atlantic. Chinese companies like Geely, which is being sued by Nokia (July 22, 2025 ip fray article), usually can’t compete in the U.S. due to geopolitics. There can be opportunities in certain emerging markets such as Brazil, where BYD has been slapped with a preliminary injunction (July 12, 2025 ip fray article) and India.
Here’s Acer’s U.S. complaint against PACCAR:
Like Longhorn’s complaint, Acer’s mentions the fact that PACCAR was offered an Avanci license. That is one of two ways (the other being a bilateral license) in which PACCAR could put those disputes to rest.
Counsel
Acer is being represented by Findlay Craft’s Eric Findlay and TechKnowledge Law Group’s Kai Tseng, Craig R. Kaufman and Jerry Chen. The latter firm is just in the process of setting up its website.