The two companies have hit back at Google over claims they employ a troll company to enforce patents.
In documents sent to regulators in the United States and Europe, Google accuses the companies of funding patent wars through proxy companies.
The company says that the charges Google leveled against Nokia and Microsoft are "wrong."
Patent holder in which Microsoft has a financial interest files lawsuit claiming Apple is infringing on eight patents related to wireless communications protocols.
Hint: It involves patents, and making money from them.
Forum selection--or the ability to choose the particular district in which a patent case will be litigated--is a hot issue these days. A recent decision may limit the patent holder's options for choosing a venue.