Patenting time-lapse microscopy: the European story.

European Patent No. 2430454 of Stanford University is open to opposition before the European Patent Office if such opposition is filed by 23 October 2013. This is the European equivalent of the US Patent that raised such controversy in this journal in August 2013 as being a patent on time. The European Patent, which is directed to a method of selecting embryos for implantation using the results of time-lapse microscopy, should, in the present authors' opinion, be revoked as being directed to a method of medical diagnosis, which is unpatentable under European patent law. The only party currently opposing Stanford's patent is a competitor, Unisense FertiliTech A/S which is itself seeking to patent similar methods in Europe; the objection that Stanford has patented a method of diagnosis has not been raised by Unisense FertiliTech. We submit that Stanford's patent should be opposed to safeguard competition and to protect the freedom to operate of clinicians. In this paper we explain how Stanford's patent should fail under European law. [ABSTRACT FROM AUTHOR]