Vringo Infrastructure Inc. v ZTE Limited, (Pat), Birss J., 28 November 2014, Case No.  EWHC 3924
As reported previously on the EPLAW Patent Blog, Vringo is the owner of a portfolio of patents relating to 2G/3G/4G telecommunication equipment which were originally developed by Nokia. Vringo have been seeking to enforce these patents in a variety of jurisdictions including the UK, Germany, France and the Netherlands.
This judgment, which concerned allegations of infringement of EP (UK) 1 212 919 relating to the management of handovers between cells in a mobile network, is stated to be the first of a series of patent trials scheduled to be heard in the English Patents Court between these parties in the next year or so.
The ‘919 patent obtained by Nokia was declared by Nokia to be essential to the 3GPP standards: TS 36.413, TS 36.331, TS 25.413, TS 25.331, TS 25.401 and TS 25.301. The invention claimed in the ‘919 patent concerns a process of SRNS location which is performed when a mobile phone moves from a cell covered by one node in a network into an adjacent cell. The key concept which is the subject of the patent relates to the use of protocol “transparency” and the manner in which information is transferred between two nodes in a network.