The English Patents Court (Birss J) recently demonstrated a somewhat unconventional approach to answering the statutory question of obviousness when assessing inventive step*. The judgment also provides some guidance on the role of commercial as opposed to technical considerations, in particular regulatory concerns, when assessing obviousness. Leo Pharma, the defendant in these proceedings, market a…

1 Introduction Reports that say there’s — that something hasn’t happened are always interesting to me, because as we know, there are known knowns; there are things that we know that we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But…

Patent litigators around Europe will be taking note of the latest significant development from the English Patents Court in the case of Actavis v Eli Lilly [2014] EWHC 1511 (Pat) (judgment dated 15 May 2014), in which the English Court decided to grant declarations of non-infringement (DNIs) for three foreign designations of a European Patent…

The development of Herceptin (trastuzumab) in the late 1980s and 1990s is one of the most remarkable advances in the treatment of breast cancer. The story of the drug and its pioneer, the “velvet jackhammer”, Dennis Slamon, is neatly summarised in Siddhartha Mukherjee’s award winning novel: “The Emperor of All Maladies – a Biography of…

The Court of Appeal upheld the judgment of the High Court (Arnold J) that claims concerning treatment of osteoporosis with zoledronic acid were not entitled to an earlier priority date and were therefore invalid over an intervening publication. The Court held that the disclosure in the priority document was either too general or too specific,…