In a federal court in Texas, a relatively small firm, Lepton Computing, has taken on Samsung with a patent infringement lawsuit that goes straight to the heart of its foldable ambitions. According to the complaint (via Seoul Wire), Samsung’s entire Galaxy Z Fold and Flip lineup, along with the now sold-out TriFold, steps on nine of Lepton’s patents tied to core foldable smartphone technology.

What makes this especially striking is how far that claim actually goes. These patents lay out the basics — the hinge, sensors, apps that shift between the inner and outer screens, and even how everything from cameras and magnets to speakers is packed into that tight-folding body. So, Lepton is actually suggesting that the foundation of foldables was laid by the company itself.