Hewlett-Packard has accused a printer cartridge vendor of infringing its patents, after a worldwide probe.
HP notified Cartridge World North America that it had discovered infringements of its patents in inks sold “by multiple Cartridge World franchisees” in the US.
The warning follows HP’s discovery earlier this year of patent infringements in InkCycle cartridges sold under the Staples brand. The matter was resolved after InkCycle changed its ink formulations.
Pradeep Jotwani, senior vice-president of supplies for HP’s imaging and printing group, said, “HP spends millions of dollars annually in R&D to create innovations that benefit our customers, and we are rigorous in our protection of this investment. HP hopes that Cartridge World North America will assist its franchisees in quickly complying with the law.”
In a separate dispute, HP and Rhinotek Computer Products have reached a settlement after HP filed a lawsuit in March 2005, alleging false advertising and unfair competition. HP claimed that Rhinotek's packaging failed to adequately inform consumers that its products – used HP cartridges refilled with generic ink – were used and not new.
Rhinotek denied any wrongdoing, but agreed to change its packaging to make the used, refilled or recycled nature of the products more prominent.