The Leahy–Smith America Invents Act (AIA), signed into law in 2011, has created new opportunities for those accused of patent infringement to challenge the validity of granted patents, with the institution of new “post-grant” proceedings.
RPost today announced the US Federal Court in California has now re-affirmed the validity of its US Patent 6182219 by granting RPost’s motion for summary judgment on a counterclaim of invalidity. RPost brought suit against a number of companies in 2011 for infringing some of its 35 patents, the validity of which those defendants challenged.
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