The patent prosecution highway (PPH) pilot programme between the United States Patent and Trademark Office (USPTO) and the Intellectual Property Office of Singapore (IPOS) was implemented on February 2 2009 to allow applicants to obtain corresponding patents in the United States and Singapore more quickly and efficiently. Under the PPH, when at least one claim in an application in either one of these countries has been found to be patentable, the applicant can apply for fast track examination of the corresponding claim(s) in the US and Singapore patent applications, respectively.