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Proxyconn Seeks Rematch with Microsoft After PTAB Cancels Claims on Remand
Proxyconn, Inc. has filed suit against Microsoft, Acer, Dell, and HP (8:16-cv-01102) six months after the Patent Trial and Appeal Board (PTAB) cancelled multiple claims of the patent-in-suit on remand from the Federal Circuit. In a complaint filed on June 14, Proxyconn—a former provider of dialup acceleration software that has apparently shifted its focus to patent assertion—asserts a single patent (6,757,717) generally related to reducing the amount of redundant data transmitted over a packet-switched network. Microsoft is accused of infringement through its use of a technology called Remote Differential Compression (RDC) in various versions of its Windows, Office, and SharePoint software. Acer, Dell, and HP, meanwhile, are targeted for the sale of personal computers and servers running this same Microsoft software.
June 17, 2016
In First-Ever Reversal of PTAB Decision, Fed. Cir. Determines Claim Construction of a Data Access Patent to Be Too Broad
This week, the Federal Circuit issued its first reversal of an AIA decision, vacating the PTAB’s invalidation of eight claims of a patent asserted against Microsoft. The patent-in-suit is owned by Proxyconn, Inc., a web accelerator company, and relates to a system for increasing the speed of data access in a packet-switched network (6,757,717). Proxyconn filed four suits against Acer, Dell, HP, and Microsoft in November 2011, accusing Microsoft Windows, and products running the operating system, of infringing the ‘717 patent. Judge David Carter of the Central District of California consolidated the cases a few months later (8:11cv01681) and, in November 2012, stayed the case pending IPR proceedings. In a final decision issued in February 2014, the PTAB found all but one of the challenged claims (claim 24) to be unpatentable as anticipated or obvious.
June 18, 2015