Of the wave of inkjet cartridge patent-infringement lawsuits filed by Epson against aftermarket supplies vendors in U.S. federal courts starting in late 2016, only three lawsuits remain: Epson’s complaint against InkJet2U LLC and Worf Corporation; its lawsuit against CIS Systems, Absolute Inkjet Incorporated, Anthony K. Martin, and Joseph J. Ascaridis; and its lawsuit against STS