Apple has filed a lawsuit against handheld-scanner manufacturer Unova, alleging the infringement of six Apple technology patents.

Apple wants the courts to prevent Unova from selling products based on the patented technologies.

Bloomberg reports Apple's claims that Unova's Intermec unit is using the technology in handheld or vehicle-mounted software and scanners used in warehouses.

The suit follows a filing by Unova in May 2002. The company alleged that Apple, Fujitsu, Gateway, NEC, Matsushita and Dell are infringing its smart battery patent used in notebook computers.

This patent monitors the use and recharging of portable computer batteries.