In most systems, a patent is valid for 20 years from the filing date of the patent application. Patents are granted with a presumption of validity but no patent is safe from being challenged and declared (partially) invalid by national courts or, in the case of European patents, revoked by the European Patent Office. Often, a claim of invalidity of a patent is a reaction to an action of the patentee, in particular an infringement action.
Last April we reported the case of Gedeon Richter plc v Bayer Schering Pharma AG [2011] EWHC 583 (Pat), concerning immediate release formulations of a combination contraceptive product containing the steroidal hormones drospirenone and ethinylestradiol. We can now report the decision of the Court of Appeal in this case (handed down on 7 March 2012)…
The Court of Appeal dismissed Pharmaq’s claim that Intervet’s patent claiming deposited virus strains and closely related strains sharing genotypic and phenotypic characteristics was invalid and that its vaccine did not infringe. The court held that the patent only covered the virus in isolated form and that the isolation of the virus strain from nature…
The English High Court has upheld the decision of the UK Intellectual Property Office to refuse the grant of a patent for the treatment of inflammatory bowel disease (IBD) with zinc (El-Tawil v The Comptroller General of Patents [2012] EWHC 185 (Ch)). Although the case does not break new ground, it provides a useful review…
Litigation and EPO Oppositions/Appeals surrounding a controlled-release dosage form of the drug oxycodone, a morphine-like opioid analgesic developed in 1918, has kept Europe’s Pharma IP Lawyers busy for a couple of years. One of the key EP patents in this battle has been EP 722 730, and almost everything about this patent is out of…
On 20 January 2012 the Court of Appeal in England heard the case of Apimed Medical Honey v Brightwake Limited [2012] EWCA Civ 5. Apimed owned European Patent (UK) 1,237,561 (‘the Patent’) for an invention of “Medical dressings comprising gelled honey” and this was held invalid for obviousness at first instance in the Patent’s County…
In 1984, the claimant filed an application for an agricultural crop spraying device which by the use of compressed air was intended to offer a more efficient means of dispensing the liquid. In 1986, the claimant sent a copy of the application to the defendant and in 1989 the claimant alleged having noticed that the…
As stated already in one my earlier posts (here), Legislative Decree no. 131/2010 has introduced a new procedural tool in the Italian IP litigation scenario. New Art. 128 of the Italian IP Code now allows the conduction of a Preliminary Technical Assessment (PTA). In practice, as an alternative to commencing ordinary proceedings or preliminary injunction…
Can a valid European patent be declared invalid in Poland? In other words, can a computer-implemented invention for which a European patent has already been granted be refused a patent by the Polish Patent Office? While this may sound contradictory, it is in fact common practice – not only in the Polish Patent Office but…
In a recently published decision the Swiss Federal Supreme Court clarified some particularities of the former Swiss Patent Act regarding the amendment of patent claims during prosecution proceedings. Under the Swiss Patent Act in force until 1 July 2008, applicants who applied for the grant of a Swiss patent were allowed to extend the scope…
by Miriam Büttner In a recent decision of 15 September 2011 (ref. no. 4b O 99/11) the District Court of Düsseldorf (LG Düsseldorf) found that a non-final decision of the utility model cancel-lation division of the German Patent and Trademark Office (GPTO), with which the utility model was declared (partially) invalid, is not a sufficient…
