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.
The longest period of service as an MP before becoming Prime Minister was 47 years for Lord Palmerston. The richest Prime Minister was Edward Smith-Stanley, 14th Earl of Derby, with a personal fortune of over Â£7 million (about Â£444 million in today's money).he youngest Prime Minister to be appointed was William Pitt the Younger on 19 December 1783 at the age of 24 years, 6 months and 21 days. The oldest Prime Minister to be appointed for the first time was Henry John Temple, 3rd Viscount Palmerston on 6 February 1855 at the age of 70 years, 3 months and 17 days.