ITC Opens Section 337 Probe Into Chips With Short-Circuit Protection

The International Trade Commission launched a Tariff Act Section 337 investigation into allegations that devices from Apple, Google, Lenovo, Microsoft, OnePlus, Samsung and TCL infringe a 2007 patent (7,183,835) owned by Arigna Technologies describing power semiconductors that provide short-circuit protection for insulated gate-type switching devices, says a notice for Friday’s Federal Register. Arigna’s Feb. 11 complaint (supplemented Feb. 23 and amended March 17) in docket 337-TA-1308 seeks limited exclusion and cease and desist orders.