Q4 in Review: Funded Patent Plaintiffs Launch New Campaigns, File More Suits—and Signs of More Coming

During the fourth quarter of 2025, RPX flagged multiple new patent campaigns initiated by plaintiffs tied, by public records, to third-party litigation funders, including a prominent litigation finance firm and a hedge fund with a growing footprint in the IP space. Meanwhile, several funded campaigns netted new defendants, and USPTO records made public in Q4 link a newly formed NPE to a well-known IP finance firm.