Revocation

Revocation of a patent concerns a mechanism which provides for an inter partes review of the validity of a. At the European Patent Office a patent can be revoked by the Opposition Division or Boards of Appeal. A notice of opposition has to be filed within nine months from the publication of the mention of the grant of a European patent.  In 2000 Article 105a was introduced in the European Patent Convention, providing centralised limitation and revocation procedures at the level of the EPO, which allows the patent proprietor either to have the claims of his granted patent limited or to have the whole patent revoked for all its designated states. The effect of this central revocation is that the patent in question is deemed never to have existed. It is revoked ex tunc.

Enforcement, evidence, Inventive step, Litigation, Novelty, Patents, Pharma, Pharmaceutical patent, Plausibility, Prior art, Revocation, Second Medical Use, Sufficiency of disclosure, United Kingdom, Validity

, (Bristows)/

On 4 December 2020, the English Patents Court handed down its decision in Neurim Pharmaceuticals (1991) Limited & Flynn Pharma Limited v Generics UK Limited (t/a Mylan) & Mylan UK Healthcare Limited, the main action proceedings regarding Neurim’s patent for Circadin™, EP 1 441 702 (“EP 702”).  The judgment is available here. Many readers will…

Amendments, Equivalents, Extent of Protection, Infringement, Litigation, Novelty, Patents, Pharma, Pharmaceutical patent, Prior art, Revocation, United Kingdom, Validity

(Bristows)/

On 15 October 2020 Meade J. handed down his first ever written judgment in his new role as a Judge of the High Court in MSD v Wyeth. The neutral citation for the case is [2020] EWHC 2636 (Pat) and a link to the judgment is found here. The Judge had heard the case back…

Inventive step, Kluwer Patent Cases, Litigation, Patents, Prior art, Public prior use, Revocation, United Kingdom, Validity

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Mishan (T/A Emson) v Hozelock & Ors [2020] EWCA Civ 871 Since Arnold LJ’s elevation to the Court of Appeal in 2019, he and Floyd LJ have heard about 11 cases together, spanning a mixture of areas of law, some patents cases and some not.  In the majority of these cases, Floyd LJ (or a…

Case Law, Enforcement, Infringement, Litigation, Patents, Procedure, Revocation, Sufficiency of disclosure, United Kingdom, Validity

(Bristows)/

On 9 October 2019, the Court of Appeal dismissed an appeal against the finding that a patent directed towards ceramic compounds was sufficient and allowed two procedural appeals on issues of liability. Anan Kasei and Rhodia (“Rhodia”) are respectively the proprietor and exclusive licensee of a patent for ceric oxide compounds for use in catalytic…

Case Law, Equivalents, Infringement, Inventive step, Kluwer Patent Cases, Litigation, Patents, Prior art, Prior use right, Revocation, United Kingdom, Validity

(Bristows)/ /2 Comments

A further interesting decision handed down by the Judges of the English Patents Court prior to the Easter break was a judgment from Nugee J concerning proceedings between E. Mishan and Hozelock relating to a UK patent and European patent, both entitled “Expandable Hose Assembly”. E. Mishan (trading as Emson) claimed that Hozelock’s expandable garden…

Case Law, Infringement, Inventive step, Litigation, Novelty, Prior art, Revocation, United Kingdom, Validity

, (Bristows)/

Around this time last year, in Edwards Lifesciences v Boston Scientific [2017], His Honour Judge Hacon (sitting as a High Court Judge) had the opportunity to analyse two interesting aspects of UK patent law: (i) the law of implied disclosures and anticipation; and (ii) the importance of so-called secondary evidence in the evaluation of inventive…

EPC, EPO, Equivalents, Inventive step, Litigation, Novelty, Pharma, Pharmaceutical patent, Prior art, Revocation, Second Medical Use, United Kingdom, Validity

(Bristows)/

Patent lawyers in the UK have spent the last three months pondering, debating and at times indulging in an element of despair (to put it mildly) about what might be the impact of the judgment of the Supreme Court in Actavis v Eli Lilly [2017] UKSC 48 on issues of validity (see here). Today they…

Case Law, Novelty, Procedure, Revocation, Switzerland, Validity

(MLL Legal Ltd.)/

Although there is a well-known crime novel by James M. Cain saying the contrary, the postman does not always ring twice, particularly not in patent nullity proceedings when it comes to the service of the complaint under the Hague Convention. Recently, two patents were declared null and void in Switzerland. In both proceedings the revocation…

Biologics, Inventive step, Revocation, United Kingdom, Validity

(Bristows)/

by Chloe Dickson On 30 November 2016 the Court of Appeal handed down judgment in the latest chapter of the Hospira v Genentech epic surrounding Genentech’s blockbuster drug trastuzumab (Herceptin®) (Hospira v Genentech [2016] EWCA Civ 1185). This instalment concerned a patent for use of the antibody trastuzumab in combination with a traditional chemotherapeutic agent,…