PPH improvement initiativeThe PPH is an international cooperation mechanism for patent examination, aiming to expedite the patent examination process through sharing of examination results among various patent examination authorities under the PPH cooperation agreement. China's joining the improvement initiative has further committed to and ensured the high-speed operation of the Patent Prosecution Highway. Although patent examination standards vary among countries or regions worldwide, the principles for determining novelty and inventiveness are generally consistent. ConclusionThe implementation of the PPH Improvement Initiative signals the CNIPA’s renewed commitment to the PPH programme, and the CNIPA has also achieved shorter examination timelines, fulfilling its commitment. As previously noted, the PPH programme can expedite patent examination, shorten the time to grant, and reduce patent costs.