Printer maker Lexmark wins patent case against cartridge reseller

A printer cartridge reseller infringed the patent rights of Lexmark International Inc when it imported Lexmark's toner products back into the United States after they were first sold abroad, a U.S. appeals court ruled on Friday. In a victory that reinforces U.S. patent owners' ability to control the use of their products after they are sold, the court also found Impression Products Inc liable for selling refurbished Lexmark cartridges that were originally marketed for a single use under its retu