Lexmark is one of numerous printer manufacturers that installs smart chips in printer ink cartridges. If you try to refill an empty cartridge with a third-party ink ...

There are dozens of different printers in Lexmark's X line, and they vary widely. The X543DN, for example, is a laser printer for which you would buy toner, not ink cartridges. Even the X-series ...

Score one for the little guys. In a precedent-setting decision handed down this morning, the U.S. Supreme Court ruled that a company’s patent rights are forfeited once they sell an item to a consumer ...

The US Supreme Court has ruled that a company's patent claims end after the first sale and customers can refurbish and sell old products without the threat of being sued under patent laws by the ...

A nearly unanimous Supreme Court told Lexmark it can't use patent law to restrict printer cartridge buyers from doing what they want with the cartridges, including refilling them or even selling them ...