2016 Annual Patent Dispute Report. Overview. While the volume of patent litigation in district courts dipped in 2016, the number of PTAB challenges stayed flat, approximately matching the number of petitions seen in 2014 and 2015. District court litigation was down 24.8% from 2015 and 11.7% from 2014.
Arthur Wellesley, the first Duke of Wellington and one of England's greatest military leaders, served as Prime Minister from 22 January 1828 to 16 November 1830 and again from 17 November to 9 December 1834.
colour key for political parties whig tory conservative peelite whig liberal labour national labour current prime minister david cameron was appointed on 11 may 2010 and re elected on 7 may 2015 the prime minister of the united kingdom is the head of government of the united kingdom and chairs cabinet meetingsthere is no specific date when the office of prime minister first appeared as the role was not created but evolved over a period of timerime minister of the united kingdom spouse of the prime minister of the united kingdom historical rankings of prime ministers of the united kingdom records of prime ministers of the united kingdom