MacRumors.com

Bloomberg reports that Apple Inc, Dell Inc, Sony Corp and five other technology companies were added to an ongoing lawsuit over patents covering Bluetooth technology.

The suit threatens the ability of the computer and device makers to deliver wireless capabilities to customers. The companies are accused of infringing four patents covering technology that lets users exchange data among mobile phones, personal computers and other devices without using cables.

The suit is being brought by Washington Research Foundation, a non-profit organization. The suit is specifically aimed at CSR, the maker of the Bluetooth chips used in Apple's computers. CSR believes the "suit is without merit in relation to CSR's Bluetooth chips and CSR will defend its products rigorously."