Aylus Networks, Inc. v. Apple Inc.
Statements made by the patent owner during an inter partes review (IPR) proceeding, whether before or after an institution decision, can be relied upon to support a finding of prosecution disclaimer. Aylus’s patent “provides systems and methods for implementing digital home networks having a control point located on a wide area network.” It teaches various network architectures for streaming and displaying media content using combinations of networked components. The Patent Office initiated IPR on two claims while Aylus’s infringement suit was pending. In its response to Apple’s request for IPR, Aylus made statements that the court subsequently characterized as constituting “clear and unmistakable surrender” of certain methods. The district court entered summary judgment, finding that Apple’s AirPlay feature did not infringe the patent. The Federal Circuit affirmed, upholding construction of the limitation “wherein the CPP logic is invoked to negotiate media content delivery between the MS and the MR” to “require that only the CPP logic is invoked to negotiate media content delivery between the MS and the MR, in contrast to claims 1 and 20 which require both the CP and CPP to negotiate media content delivery.” Aylus’s statements during IPR were a clear and unmistakable disavowal of claim scope. View "Aylus Networks, Inc. v. Apple Inc." on Justia Law