abstract:A patent holding company (PHC) exists to hold patents on behalf of one or more other companies but does not necessarily manufacture products or supply services based upon the patents held.
In 2001, Virgina-based patentholdingcompany NTP filed suit against RIM, alleging patent infringement, and since then, the case has plugged along through various courts and appeals.
This patentholdingcompany is charging infringement and demanding royalties from every app developer for the iPhone and Android, for a feature most agree has been in apps for many years.