Graham’s technical fields are mechanical and electrical engineering, electronics and physics. From the outset, he has been much concerned with patents covering pharmaceutical devices, particularly in relation to drug delivery, and has many years’ experience in optical technology. Graham has also been involved in the preparation of a detailed review of an extensive patent portfolio in preparation for the launch of company shares (IPO- Initial Public Offering), and also has substantial experience in patent portfolio reviews for other purposes. Graham is a very frequent visitor to the European Patent Office for European Oppositions and Appeals, which take up a major proportion of his time.