On December 31, Unified filed a petition for inter partes review (IPR) against U.S. Patent 8,301,906 owned by Checksum Ventures (owned by well-known NPE Bradley Liddle).  The ‘906 patent, directed to techniques for checksumming data, has been asserted against cloud storage companies including Dell, Backblaze, and SpiderOak. 

 View Checksum Venture's district court litigation.  To read the petition and view the entire case proceeding, see our PTAB Portal.