HP has won another major German patent case against Ninestar, after a Munich court reportedly banned the sale of certain compatible toner cartridges and ink cartridges tied to the Chinese aftermarket giant for infringing HP cartridge authentication and printer chip technology patents. The ruling increases legal pressure on companies connected to the Ninestar network, including G&G, Seine Holland, Zhuhai Ninestar Information Technology, and Ninestar Image Tech, while strengthening HP’s global campaign against compatible printer cartridges, clone toner products, and third-party ink supplies sold across Europe. Tonernews.com say the decision could significantly impact the global aftermarket printer supplies industry, as HP continues using patent litigation, firmware security updates, and intellectual property enforcement to defend its OEM toner and ink cartridge business against low-cost Chinese counterfeiters.