Since 2009, French law has allowed patentees to voluntarily limit their granted patent claims. This possibility, which has existed for a long time in a number of European countries, (e.g. Austria, Switzerland, Germany, Denmark, Italy, Norway and the United Kingdom) has recently been introduced into the European patent system through Art. 105bis et seq. of the…

A movement is emerging now among the French courts to stay the proceedings in litigations relating to supplementary protection certificates (SPCs) and more precisely relating to the interpretation of Article 3(a) of Regulation (EC) No. 469/2009 (former Regulation No. 1768/92): “the product is protected by a basic patent in force”. These proceedings are stayed waiting for future decisions…

Who may bring an action for patent revocation? Such is the fundamental question which has been submitted to the Tribunal de Grande Instance of Paris in a case whose factual circumstances made it very interesting. On 13 September 2010, Omnipharm Limited served a summons on Merial to appear before the Tribunal de Grande Instance of Paris to…

On 15 March 2011, in a dispute opposing the companies E.I Du Pont de Nemours and Merck and companies Mylan and Qualimed, the Cour d’Appel of Paris confirmed the order handed down on 12 February 2010 by the President of the Tribunal de Grande Instance of Paris, subject-matter of a previous post. The American company E.I. Du Pont de…

Daiichi Sankyo (hereinafter referred to as “Daiichi”) was the holder, for a drug whose active principle was pravastatine, of a supplementary protection certificate (SPC) granted on 26 August 1992 which expired on 10 August 2006. This company claimed that Sandoz had, since July 2006, manufactured and put on the French market a generic drug of pravastatine, thereby infringing the exclusive…

The company governed by the laws of Switzerland, Novartis AG, is the holder of patent EP 0 443 983 entitled “Acyl compounds”, whose subject-matter is a group of antihypertensive compounds, including valsartan, pharmaceutical preparations containing them and processes for the preparation of these compounds. , This patent, filed on 12 February 1991, was to have expired on 12 February 2011. However, Novartis…

H. Lundbeck A/S (hereinafter referred to as Lundbeck) is the holder of European patent EP 0 347 066 entitled “new enantiomers and their isolation”, which designates France and was filed on 1 June 1989; it claims priority of a British patent dated 14 June 1988. The invention relates to the two new enantiomers of the antidepressant drug Citalopram and the use of…

By a judgement dated 28 September 2010, the Tribunal de Grande Instance of Paris held that claims 1, 2 and 3 of the French designation of Merck & Co. Ltd’s Patent EP 0 724 444 were invalid for being excluded from the scope of patentability in accordance with the provisions of Article 53(c) EPC 2000 (former Article 52  (4) EPC 1973). The court held that the invention the subject-matter of main claim 1 was only a new dosage regime ranging from 0.05 to 1 mg) of an already known compound (finasteride) in an already known therapeutic application (the treatment of hyperandrogenic conditions and especially the treatment of androgenic alopecia). A mere new dosage regime is not a second medical use but a therapeutic method excluded from patentability pursuant to Article 53  (c) EPC 2000.

On the occasion of a dispute opposing the Institut Pasteur and two Chiron companies, the French Cour de Cassation rendered on 14 December 2010 an interesting decision which confirms the existing case law on three points : the “file wrapper estoppel” theory, the contributory infringement and the infringement by equivalence.

On 8 October 2010, the Cour d’Appel of Paris rendered a interesting decision about the interpretation of the wording of one of the settlement agreements which have been concluded between Institut Pasteur and the American health authority (DHHS/NIH) in order to put an end to the various disputes which opposed them concerning the paternity of the HIV-1/VIH retrovirus’ discovery and the patents relating thereto. The question at stake was to determine if a gp 110 protein was the subject-matter of the said settlement agreement so that Abbott, as a sublicensee of the NIH, could validly exploit in France that gp 110 protein in its detecting kits. Otherwise Abbott would have been an infringer of the Institut Pasteur’s European patents.