A patent is a government authority or licence conferring a right or title for a set period, especially the sole right to exclude others from making, using, or selling an invention without their permission. 

A UK patent may help if you want to take legal action against someone who uses your invention without your permission. For example, if they sell or manufacture your product in the UK.

A patent lasts 5 years, and you can renew it every year for up to 20 years.