Editing James Watt (section)

==Patents==
Watt was the sole inventor listed on his six patents:<ref>Hills, vol. 3, p. 13.</ref>
* Patent 913: A method of lessening the consumption of steam in steam engines – the separate condenser. The specification was accepted on 5 January 1769; enrolled on 29 April 1769, and extended to June 1800 by an Act of Parliament in 1775.
* Patent 1,244: A new method of copying letters. The specification was accepted on 14 February 1780 and enrolled on 31 May 1780.
* Patent 1,306: New methods to produce a continued rotation motion&nbsp;– sun and planet. The specification was accepted on 25 October 1781 and enrolled on 23 February 1782.
* Patent 1,321: New improvements upon steam engines&nbsp;– expansive and double acting. The specification was accepted on 14 March 1782 and enrolled on 4 July 1782.
* Patent 1,432: New improvements upon steam engines&nbsp;– three bar motion and steam carriage. The specification was accepted on 28 April 1782 and enrolled on 25 August 1782.
* Patent 1,485: Newly improved methods of constructing furnaces. The specification was accepted on 14 June 1785 and enrolled on 9 July 1785.

{{Clear}}