Apple has filed a lawsuit against three major US computer equiptment sellers for violating design patents related to its power chargers, Bloomberg reports.
The lawsuit, filed in the US District Court for the Northern District of California, accuses Brilliant Store, Hooto.com and Sunvalleytek International of infringing Apple’s patent D478,310, issued in August 2003.
The patent covers the design of Apple's MagSafe charger used in portable devices including the Macbook Pro. The charger includes a specially designed cable that attaches to the device using a magnet, and frees itself when pulled, preventing users from accidentally dragging computers off tabletops.
Apple claims the infringement of its patent has caused "irreparable harm" to the company, and is demanding a ban on the sale of all offending products.
The company is also seeking to recover monetary compensation and costs.