Core Viewpoint - EPSON PORTLAND INC., EPSON AMERICA, INC., and SEIKO EPSON CORPORATION have filed two complaints with the U.S. International Trade Commission under Section 337 of the Tariff Act of 1930, alleging patent infringement related to certain ink cartridges and components [1] Group 1 - The companies are seeking the initiation of a Section 337 investigation and request for a general exclusion order or a limited exclusion order and cease and desist order [1] - The complaints involve a total of 20 companies from China and the United States [1]