patent war brewing on both sides of the Atlantic, now that Dolby has filed a set of lawsuits against RIM. At issue is the audio compression technology RIM uses in its BlackBerry phones and PlayBook tablets. Dolby claims this intellectual property is protected under patents that several other smartphone makers have already licensed, and that RIM should be forced to do the same. The company's lawsuits, filed yesterday in both the US and Germany, seek financial damages and an injunction that would stop all sales of allegedly infringing products. RIM declined to comment on the suit, but we'll be sure to keep you posted as the battle unfolds. Head past the break for Dolby's press release.