John Letzing for the Wall Street Journal:

A subsidiary of a company that shares patent-licensing revenue with Microsoft Corp. has sued Apple Inc. for infringement, adding another wrinkle to the ongoing intellectual-property wars among technology giants.Luxembourg-based Core Wireless Licensing S.a.r.l. filed a complaint in a Texas court last week alleging that Apple has infringed on eight patents related to wireless communications in multiple versions of its iPhone and iPad.

Core Wireless is looking for damages and future royalty payments.