By Samuel Howard

Law360, New York (July 16, 2009, 12:46 PM ET) -- Sirius XM Radio Inc. and Sirius Satellite Radio Inc. are the latest companies accused of infringing billionaire inventor Ronald A. Katz’s widely asserted patents related to automated call processing systems.

On Wednesday, Ronald A. Katz Technology Licensing LP notified Judge R. Gary Klausner of the U.S. District Court for the Central District of California of an updated complaint that includes allegations the Sirius defendants use Katz’s patented technology, removes claims for continuing infringement of recently expired patents, and excises claims against Comcast Corp., reflecting a settlement...