Patten was once the Chief Executive of the cricket and disability sports charity The Lord's Taverners.[5] He was the Chief Executive for the social mobility charity Mayor's Fund for London from 2012 until 2018,[6] and spoke at the November 2017 ACEVO conference on the third sector.[7] In 2015, he called for a watchdog similar to Ofsted to "improve performance, prevent abuse and give confidence to funders and other stakeholders" within British charities.[8]
In the European Parliament he was appointed a member of the Employment and Social Affairs Committee, the Delegation for Relations with Iran and the Delegation to the EU-North Macedonia Joint Parliamentary Committee.
He was the Brexit Party's prospective parliamentary candidate for Clacton-on-Sea for the 2019 general election,[9] but withdrew when Nigel Farage announced the party would not contest Tory-held seats.[10]
He is currently the Political & Communications Director of the think tank, Centre for Social Justice.