The Patents Act 1977 is the main law governing the patents system in the UK.
An unofficial consolidation produced by Patents Legal Section, July 2018.
The consolidation lays out in an easy to reference format the sections of the act, in a similar layout to the Manual of Patent Practice (on line version).
Note: for official reference see the full The Patents Act 1977
https://www.gov.uk/guidance/the-patent-act-1977
Content Reproduced verbatim from the Website of the United Kingdom Intellectual Property Office (UKIPO) as permitted under their Terms of Use.