Egenera accused Cisco of infringing the ‘430 patent, which names Egenera employee Peter Schulter as one of the inventors. When Cisco sought inter partes review on the basis of a 2000 reference, Egenera sought to swear behind the reference (under the first-to-invent rule, as the invention predates the AIA’s first-to-file system). Egenera relied on a document authored by inventor Max Smith, that Egenera asserts fully described the claimed invention. This document, however, pre-dates Schulter’s employment with Egenera. Egenera successfully petitioned to have Schulter removed as an inventor, and filed a declaration from Schulter stating that he was erroneously named. Cicso contended that Schulter should have been named as an inventor, and that by his removal the patent is invalid.
Judge Stearns agreed with Cisco that, should Schulter be determined to have contributed to the invention, Egenera could not petition to have him restored as an inventor under the doctrine of judicial estoppel, as such a claim would be inconsistent with Egenera’s assertion that he was incorrectly named. Judge Stearns determined, however, that while Schulter authored a pre-critical date document on a virtual LAN proxy that potentially read on a means-plus-function term in the claims, his authorship alone was not enough to determine, as a matter of law, that he conceived of the virtual LAN proxy or that the virtual LAN proxy was claimed via the means-plus-function limitation. Accordingly, he denied the cross motions for summary judgment on inventorship.