"The Patents Act says that something cannot be patented if it consists only of a program for a computer. The IPO has historically been stricter in denying software patents than European patent authorities, despite UK law being based on the European Patent Convention, on which the European Patent Office bases its decisions. The US allows software to be patented. The UK IPO now states that Software that allows programmers to program a mobile phone system remotely from a computer can be patented because it is more than just a software program. The ruling overturns an initial decision that the invention is unpatentable because it consists of nothing more than a computer program."