Articles Posted in Patents

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Lexmark manufactures printers and toner cartridges. Remanufacturers acquire used Lexmark cartridges, refill them, and sell them at a lower cost. Lexmark developed microchips for the cartridges and the printers so that Lexmark printers will reject cartridges not containing a matching microchip and patented certain aspects of the cartridges. SC began replicating the microchips and selling them to remanufacturers along with other parts for repair and resale of Lexmark toner cartridges. Lexmark sued SC for copyright violations related to its source code in making the duplicate microchips and obtained a preliminary injunction. SC counterclaimed under federal and state antitrust and false-advertising laws. While that suit was pending, SC redesigned its microchips and sued Lexmark for declaratory judgment to establish that the redesigned microchips did not infringe any copyright. Lexmark counterclaimed again for copyright violations and added patent counterclaims. The suits were consolidated. The Sixth Circuit vacated the injunction and rejected Lexmark’s copyright theories. On remand, the court dismissed all SC counterclaims. A jury held that SC did not induce patent infringement and advised that Lexmark misused its patents. The Sixth Circuit affirmed dismissal of federal antitrust claims, but reversed dismissal of SC’s claims under the Lanham Act and certain state law claims. View "Static Control Components, Inc v. Lexmark Int'l, Inc." on Justia Law