The State Intellectual Property Office of China (SIPO) launched three bilateral Patent Prosecution Highway (PPH) pilot agreements with the Swedish Patent and Registration Office (PRV), the Icelandic Patent Office (IPO), and the UK Intellectual Property Office (UKIPO) respectively on July 1, 2014. The programs were supposed to last two years to June 30, 2016.

However, to continue providing effective and convenient PPH service, SIPO and the above three offices agreed to prolong the programs.

China-UK PPH pilot program extends indefinitely as of July 1, 2016, with the related requirements and procedures stay unchanged.

China-Sweden pilot program extends indefinitely as of July 1, 2016, with related requirements and procedures stay unchanged.

China-Iceland pilot program extends for another three years as of July 1, 2016 to June 30, 2019, with related requirements and procedures stay unchanged.