Here We Go Again: Canon Sues Firms for Infringing Various Gear and Drum Patents


On January 29, attorneys for Canon, Inc., filed 11 separate complaints in the U.S. District Court for the Southern District of New York. The lawsuits accuse 18 companies of violating patents found in certain Canon and HP toner cartridges. The nine patents that Canon claims are infringed all relate to a toner cartridge’s imaging drum

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