Case: Patents/Obviousness (P.T.A.B.)

The Patent Trial and Appeal Board said that some challenged claims of Iarnach Technologies Limited’s patent that relates to systems, devices, and techniques for data communications in a passive optical network and to power saving in an optical network unit of a passive optical network are unpatentable as obvious over prior art, in an inter partes review by Nokia of America Corporation and AT&T Services Inc. The board held that some challenged claims are obvious over various combinations of prior art, including prior art titled “10-Gigabit Capable Passive Optical Networks (XG-PON): Transmission Convergence (TC) Layer Specification,” “Optically Powered Fiber Networks,” ...