Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.There are four over-riding requirements for a patent to be granted under United Kingdom patent law. Firstly, there must have been an invention. That invention must be novel, inventive and susceptible of industrial application. Patent laws in the UK and throughout Europe specify a non-exhaustive list of excluded things that are not regarded as inventions to the extent that a patent application relates to the excluded thing as such. This list includes programs for computers.