Pure Data Systems patent challenged as likely invalid

On December 31, Unified, represented by Haynes & Boone, filed a petition for inter partes review (IPR) against U.S. Patent 5,999,947 asserted by Pure Data Systems, LLC (a Dominion Harbor subsidiary and well-known NPE).  The ‘947 patent, directed to distributing changes made to a database to one or more client computers, has been asserted in 16 district court cases against such companies as Electronic Arts, Spotify, CNN, CBS, Pinterest, LinkedIn and others.

 View Pure Data Systems's district court litigation.  To read the petition and view the entire case proceeding, see Unified’s Portal.