1. The European Patent Convention. Article 53. Exceptions to patentability. Available: http://www.epo.org/law-practice/legal-texts/html/epc/2010/e/ar53.html. Accessed July 2012.
2. Jones A, Vascellaro JE (2012) Apple v. Samsung: the patent trial of the century. July 24, 2012. Available: http://online.wsj.com/article/SB10000872396390443295404577543221814648592.html. Accessed July 2012.
3. BBC News (2012) Google adds IBM patents as it looks to future. BBC News. January 4, 2012. Available: http://www.bbc.co.uk/news/technology-16409081. Accessed July 2012.
4. HM Revenue & Customs (n.d.) Corporation tax reform: patent box. Available: http://www.hmrc.gov.uk/budget2012/tiin-0726.pdf. Accessed July 2012.
5. The 20 year period is virtually harmonized the world over thanks to the Trips agreement: Available: http://www.wto.org/english/tratop_e/trips_e/t_agm0_e.htm. Accessed July 2012.