Now in its twentieth edition, Terrell on the Law of Patents has been the leading authority on UK patent law since 1884. Whether you’re applying for a new patent or facing a potential case of infringement, Terrell offers unrivalled insight and is regularly cited in court. Protect your intellectual property with expert commentary on the core principles of practice and procedure as well as specialist areas such as FRAND, licenses and SPCs. Some key features of this edition include: Plausibility is now covered in its own chapter, discussing the criterion for a valid patent claim and addressing the questions: what is the standard of plausibility and what must be rendered plausible? The subject of infringement has been re-organised across two chapters, examining the distinction between statutory and non-statutory defences as well as infringement with respect to the European Patent Convention, Patent Co-operation Treaty and Community Patent Convention. Commentary on the latest issues of artificial intelligence and patent law, including the Supreme Court ruling in DABUS. Order now to stay informed of the latest patent law developments and ensure your practice has the best guidance by its side. The most significant and relevant case law from all levels of the UK Courts, the European Patent Office, the UK Patent Office and the Appeals Boards. Explains the application process for UK national patents and European patents. Addresses entitlement and answers the key questions: who may apply for a patent and who may be granted a patent? Discusses how to apply for a supplementary protection certificate, the conditions for granting SPCs and their effects. Covers FRAND licensing, undertakings and the nature and scope of obligations. Outlines the grounds for revocation as defined by the Patents Act 1977. Looks at different types of invalidity including lack of novelty, obviousness and insufficiency. Clarifies the principles of patent infringement to ascertain whether or not there has been an infringement, as well as outlining statutory exceptions and other defences. Discusses actions for infringement and looks at the parties involved, claims forms, trial procedure and remedies. Commentary on second medical use claims, human genome sciences and central amendments to patents. Explains compulsory licenses and licenses of right. New to this edition: Includes a new chapter on plausibility, discussing the criterion for a valid patent claim and addressing the questions: what is the standard of plausibility and what must be rendered plausible? Another new chapter on defences to infringement, examining the distinction between statutory and non-statutory defences as well as infringement with respect to the European Patent Convention, Patent Co-operation Treaty and Community Patent Convention.