McKool Smith secured a complete defense win for its client Parallel Networks in an inter partes review trial before the Patent Trial and Appeal Board (PTAB) against Microsoft and IBM concerning the validity of two Parallel Networks patents. Microsoft and IBM submitted multiple requests for inter partes review of the patents after the companies were sued for patent infringement in the United States District Court for the District of Delaware.

The PTAB instituted trial on July 15, 2015, and consolidated the requests for inter partes review into two cases—IPR2015-00483 and IPR2015-00485. The patents-in-suit, U.S. Patent Nos. 5,894,554 (‘554) and 6,415,335 (’335), are directed to systems and methods for managing dynamic web page generation requests. In the PTAB’s Final Decisions (available here), made public yesterday, the Board found that Microsoft and IBM failed to prove the unpatentability of any of the 94 Parallel Networks patent claims at issue in the proceedings.

The McKool Smith IPR trial team included firm associate Kevin P. Hess

The cases before the Patent Trial and Appeal Board are Microsoft Corporation and International Business Machines Corporation v. Parallel Networks Licensing, LLC, case numbers IPR2015-00483 and IPR2015-00485.

With more than 180 trial lawyers across offices in Austin, Dallas, Houston, Los Angeles, Marshall, New York, Silicon Valley, and Washington, D.C., McKool Smith has established a reputation as one of America’s leading trial firms. Since 2006, the firm has secured nine nine-figure jury verdicts, and ten eight-figure jury verdicts. The firm has also won more VerdictSearch and The National Law Journal "Top 100 Verdicts" over the last ten years than any other law firm in the country. Courtroom successes like these have earned McKool Smith critical acclaim and helped the firm become what The Wall Street Journal describes as “one of the biggest law firm success stories of the past decade.” McKool Smith represents clients in complex commercial litigation, intellectual property, bankruptcy, and white collar defense matters.

For additional information, please contact Michael R. Coston at 212-402-9450 or


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