The Intellectual Property Office of Singapore (IPOS) has issued a clarification on the issue of second medical use claim practice in Singapore. On September 22 2010, IPOS released an Examination Guide to Singapore law and practice for contract examiners of pending Singapore applications, being one of the Austrian, Danish or Hungarian Patent Offices. The Examination Guide provides, amongst other things, a section on the allowability of purpose-limited product claims when used for claiming subject matter relating to a second or further medical use of a known substance or composition.