Unified has been monitoring PersonalWeb's activity in the cloud storage space for some time as part of our continued efforts to deter NPEs. Since 2011, PersonalWeb (www.personalweb.com) has filed over a dozen litigations against cloud storage technologies and services.
On April 15, 2014, Rackspace's Inter Partes Review (IPR) against PersonalWeb's US Patent 5,978,791 (assigned docket # IPR2014-00057) was instituted against all challenged claims. Today, Unified filed its own IPR (assigned docket # IPR2014-00702) against the '791 patent along with a motion to join Rackspace's IPR. A copy of the filed petition and motion can be viewed below.