In its complaint, Qualcomm alleged that Apple was required under its contract to ensure that Apple engineers working with Qualcomm did not communicate details about Qualcomm chips to Apple engineers working on competing chips from Intel.
The Apple-Qualcomm stand-off is centred over patent licensing with the iPhone maker accusing the chip designer of abusing its market dominance with high royalties.
However, Apple has now cut off those payments, costing Qualcomm an estimated $2 billion a year in revenue.
"The Qualcomm modem that could be used in the next generation iPhone has already been fully tested and released to Apple", Qualcomm said in a statement to Bloomberg News. Qualcomm is now the largest manufacturer of chips for mobile devices by far, but that could change in favor of companies like Intel and MediaTek if Apple decides to walk away for good.
In its USA case, Qualcomm alleges that it has six patents developed in the past four years that improve battery life in mobile devices and that 'Apple uses these technologies in its devices but is not paying for them'. It's hard not to see the suit as a last-ditch attempt by Qualcomm to recoup potential future losses if Apple decides to use other competitor's chipsets in upcoming iOS devices. Still, these results are a reflection of the toll that the legal battle between Qualcomm and Apple is taking.