Jacob Perkins has many patents: GB 4400/1819. Machinery and implements applicable to ornamental turning and engraving, transferring engraved or other work from the surface of one to another piece of metal, and forming metallic dies and matrices; construction of plates and presses for printing bank-notes and other papers; making dies and presses for coining money, stamping medals, and for other purposes. 11 October 1819 GB 4470/1820 Construction of fixed and portable pumps. 3 June 1820 GB 4732/1822 Steam-engines. 10 December 1822 GB 4792/1823. Heating, boiling, or evaporating by the steam of fluids, in pans, boilers, or other vessels. 17 May 1823 GB 4800/1823 Steam-engines. 5 June 1823 . GB 4870/1823 Construction of the furnace of steam-boilers and other vessels. 20th Nov. 1823 GB 4952/1824 Throwing shells and other projectiles. 15 May 1824 GB 4998/1824 Propelling vessels. 9 August 1824 GB 5237/1825 Construction of bedsteads, sofas, and other similar articles. 11 August 1825 GB 5477/1827 Construction of steam-engines. 22 March 1827 GB 5806/1829 Machinery for propelling steam-vessels. 2 July 1829 GB 6128/1831 Generating steam. 2 July 1831 GB 6154/1831 Generating steam;– applicable to evaporating and boiling fluids for certain purposes. 27 August 1831 GB 6275/1832 Blowing and exhausting air;– applicable to various purposes, 9 June 1832 GB 6336/1832 Preserving copper in certain cases from the oxydation caused by heat. 20 Nov. 1832 GB 6662/1835 Apparatus and means for producing ice and in cooling fluids. 14 August 1835 (steamindex incorrectly states 1834) GB 7059/1836 Steam-engines; generating steam; evaporating and boiling fluids for certain purposes. 12 April 1836 GB 7114/1836 Apparatus for cooking. 13 June 1836 GB 7242/1836 Steam-engines, furnaces, and boilers ;- partly applicable to other purposes. 3 December 1836 Perkins bought some technology, and patented it himself in multiple countries, and employed the true inventors (as was the case with Asa Spencer and Oliver Evans). Family Jacob was married on November 11, 1790 to Hannah Greenleaf of Newbury and together they had nine children. His second son, Angier March Perkins (1799–1881), also born at Newburyport, went to England in 1827, and was in partnership with his father (later taking over the business on the latter's death). His grandson, Loftus Perkins (1834–1891), most of whose life was spent in England, experimented with the application to steam engines of steam at very high pressures, constructing in 1880 a yacht, the Anthracite. Death He retired in 1843 and died in London on 30 July