This case involves allegations that Cisco infringed patents related to configuring, deploying and maintaining enterprise and application servers. Earlier in the litigation, the court determined that one of the patents was directed to ineligible subject matter, and Egenera dismissed a second without prejudice following institution of inter partes review. The court held a three day bench trial on the sole issue of whether Peter Schulter, an Egenera employee, should have remained listed as an inventor of the sole remaining patent-in-suit. Schulter was removed as an inventor after Egenera relied on an internal document that predated his being hired to swear behind prior art in the IPR (which, as it turns out, was not instituted with respect to the patent). Judge Stearns found that his removal was improper. He noted that none of the named inventors, including Schulter, reviewed the internal document before signing the declarations that accompanied the change of inventor petition, instead relying on Egenera’s management and counsel that the removal of Schulter was proper.
Later, the court construed the term “logic to modify said receiver to transmit said modified messages to the external communication network and to the external storage network” as a means-plus-function limitation. After reviewing internal documentation, including reviews of Schulter, the court determined that Schulter contributed to the means identified in the specification that were swept into the claim by means of 112(6). Judge Stearns identified passages in the specification that were taken from a state-of-development document authored by Schulter that post-dated Schulter’s employment and to which he contributed. Judge Stearns further considered testimony from one of the other inventors that the last-state-of-development document that pre-dated Schulter’s employment did not include information contained in the patent. Further, Egenera hired Schulter specifically to work on the servers covered by the patent This evidence was sufficient to overcome Schulter’s testimony that he was not an inventor, which was not corroborated by any contemporaneous evidence. As the court had already determined that judicial estoppel prevented Egenera from seeking to re-add Schulter as an inventor, the patent was deemed invalid, closing the case.