British patents have two major characteristics. One is the claim of priority, which is easy to understand and is the case in most countries; the other is the requirement of absolute novelty, which requires special attention from applicants. The UK The requirement of absolute novelty for a patent means that if your invention cannot be disclosed in writing, orally, in use, on the market, or in any other way anywhere in the world before the date of application, if it has been disclosed, the invention will have lost its absolute novelty. , patent applications may be hindered, so applicants need to pay special attention.