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Burst.com on Monday filed counterclaims accusing Apple Computer of infringing four of its U.S. patents, the Associate Press is reporting.
Santa Rosa, Calif.-based Burst develops digital media delivery technologies for audio and video content.
The filings are in response to a suit that Apple filed against Burst in January, seeking a declaration that Burst\'s patents are invalid and that Apple does not infringe them.
According to coverage by BizJournals, Burst requests in its counterclaims that Apple pay a \"reasonable\" royalty.
The media company is represented by San Francisco law firm Hosie McArthur, which also represented Burst in last year\'s litigation against Redmond, Wash.-based Microsoft Corp. Microsoft settled that litigation by paying Burst $60 million for a non-exclusive license to Burst\'s patents in March of last year.
Burst has also reportedly expanded its legal team in the Apple litigation to include Palo Alto-based intellectual property firm Carr & Ferrell, LLP, as well as the Seattle office of Susman Godfrey, LLP and Houston-based intellectual property firm Heim, Payne & Chorush, LLP.