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.
The Thessaloniki Court of Appeal held in nullity proceedings that the patent, covering ornamental light devices, lacked both novelty and inventive step. The patented subject matter was found to be known in the market and circulating in trade prior to the date of filing the application for patent protection. A full summary of this case…
The new French law implementing the London Protocol is immediately applicable, even to European patents granted before the entry into force of this new law. The Court held that the new law was procedural and should, as such, be enforced immediately with retroactive effect. A full summary of this case has been published on Kluwer…
When challenging the validity of a patent, a decision needs to be made early on as to grounds on which to rely. When it comes to allegations of anticipation and obviousness, the challenger and its advisers will need to consider whether to rely or just one or two prior art citations or to include a…
In this blog I report about how the Bundesgerichtshof (BGH) has recently eliminated some potential for conflicting decisions in Germany’s bifurcated patent litigation system. The separation of infringement and invalidity proceedings is the basis for what we call the “mouse and elephant strategy”. In the infringement proceedings the patentee tries to establish a scope of…
In the 30 June 2010 decision, the Cour d’Appel of Paris stated how the novelty of an invention, namely a pharmaceutical compound having a high degree of purity, should be assessed.
The Court of Appeal has held that the skilled person (which can be a team of individuals) may vary depending on the question in issue (e.g. obviousness, novelty, sufficiency or construction). The patents in suit taught the use of marine Controlled Source Electromagnetic (“CSEM”) surveying to locate oil or gas. For the purposes of sufficiency…
The Danish Supreme Court dismissed Meyn’s claim against Linco and declared Meyn’s patent invalid.
In this case, the Court of Appeal of Paris affirmed a judgement of the Court of First Instance of Paris holding that a product “may not acquire novelty simply because it is prepared in a purer form”. The Court decided that “the parameters that are not inherent to the chemical compound itself, but rather are…
There have not been many decisions in 2010 from the English Patents Court that are likely to be regarded in future decades as seminal judgments. However, in the author’s view, the judgment of the Court of Appeal of 28 July 2010 in Schlumberger Holdings Limited v Electromagnetic Geoservices AS is likely to be cited frequently…
What happens when the same invention is covered by a French national patent and a European patent claiming the priority of the French application and when the European patent lapses after having replaced the French national patent?
The patentee has no patent at all!
That is the bitter lesson of the 2 July 2010 decision of the Cour d’Appel of Paris.
