What China’s Lead in PCT Filings Really Indicates—Not Just a Large Number of Applications, but the Depth of Technological Capability Expanding Internationally

The first point to note in WIPO’s latest announcement is that this is not simply a ranking of the number of domestic patent filings. Rather, it concerns trends in PCT applications aimed at securing rights internationally, as well as trends in international design applications. WIPO’s official press release was issued on March 6, 2026, Geneva time, and reported that total PCT filings in 2025 reached 275,900 worldwide. China accounted for 73,718 filings, up 5.3% year on year, followed by the United States with 52,617, Japan with 47,922, South Korea with 25,016, and Germany with 16,441. In addition, China also ranked first in the design field, with 5,911 international design filings, up 21.4% from the previous year, making it the leader under the Hague System as well.

If this news is dismissed simply as “China has a large number of filings,” the essential point will be missed. What matters is not merely that China maintained its top position in PCT filings, but that the rankings for international patents, international designs, applicants by company, and technology fields are all pointing in almost the same direction. In other words, China’s growing presence is not just the result of a few exceptional companies or a policy-driven push. Rather, it is now appearing as the breadth and depth of international IP activity across fields ranging from communications and semiconductors to consumer devices and design. China first surpassed the United States in PCT filings in 2019, but the latest figures should be seen not as a temporary reversal, but as evidence that its position has become firmly established.

What is particularly suggestive in this announcement is how neatly the technology fields overlap with the list of applicants. According to WIPO, in published PCT applications for 2025, digital communication remained the largest field at 11.1%, while semiconductors also showed strong growth among the major technology areas. In the applicant rankings, Huawei took first place with 7,523 applications, followed by Samsung Electronics with 4,698, Qualcomm with 3,227, LG Electronics with 2,400, and CATL with 2,203. Moreover, 16 of the top 20 applicants belong to the ICT sector. This means that IP statistics are directly reflecting the core domains of current industrial competition. The fact that digital communication and semiconductors are expanding, with Chinese and other Asian companies at the center, is no coincidence.

It is also symbolic that Huawei has maintained the top position among PCT applicants continuously since 2017. What deserves attention here is that this is not merely a story of one particularly strong company. Huawei has also demonstrated a strong presence in both the PCT and Hague systems, ranking first in international design filings in 2025 as well, with 1,200 filings. Ranking highly in both patents and designs suggests a strong commitment to securing the entire business through IP, covering not only foundational technologies but also product implementation, interfaces, and even the appearance and design of hardware. This makes it especially clear that technology companies are trying to use IP not only to protect the results of R&D, but also to fence off the point of contact between commercialization and market expansion.

At the same time, this news should not be read simply as a binary confrontation between China and the United States. WIPO’s announcement shows that while China and South Korea both posted year-on-year growth, the United States declined for the fourth consecutive year, and Japan and Germany each declined for the third consecutive year. Of course, a decline does not immediately mean a loss of technological capability. It may reflect a more selective filing strategy by companies in those countries, or a greater emphasis on routes other than the PCT. Even so, it is difficult to deny that the presence of Asian countries in the field of international filings is growing stronger. In particular, South Korea’s 28th consecutive year of growth indicates that Asia’s technological, manufacturing, and standardization capabilities have been building steadily over the medium to long term.

Another point that should not be overlooked is China’s growth in the design field. China ranked first not only in patents but also in international designs, posting a strong 21.4% year-on-year increase. This suggests that the main battleground of competition is no longer limited to whether a company can develop technology, but has expanded to include how that technology is presented as a product and what kind of experiential value it offers in the marketplace. If patents protect technological architecture, designs protect the product’s final point of contact with users. The fact that Chinese companies are beginning to drive both of these wheels within international systems shows that competition in the global market is becoming more multidimensional.

This is also the context in which WIPO Director General Daren Tang’s remarks should be understood. He stated that the increase in filings in digital communication and semiconductors shows that digital technologies continue to reshape the global innovation landscape, and that AI will become a new engine of growth. AI is not so much a single technological field as a technology that creates value across communications, semiconductors, software, devices, cloud infrastructure, and even user experience. For that reason, IP competition in the age of AI is not simply about whether to obtain a patent for one invention, but about portfolio design: which domains to secure, through which systems, in which countries, and at what timing. These latest statistics suggest that Chinese companies understand this game quite deeply and are acting accordingly.

This news is particularly significant for Japan because, although Japan still ranks third in the world, its filings declined by 1.0% year on year. This is not something that should be viewed with unqualified pessimism, but it does indicate that merely being among the top countries by filing volume is no longer enough for reassurance. Going forward, questions will become even more important: in which technology fields should international filings be intensified, how should resources be allocated to standard-essential patents, data-driven technologies, semiconductor-related technologies, and AI implementation technologies, and how should companies pursue international expansion not only through patents but also through designs and trademarks? From a practical standpoint, what will become decisively important is not only the ability to identify inventions, but also the ability to connect business strategy with IP strategy.

These latest WIPO statistics are news not only because they demonstrate China’s strength in terms of quantity, but also because they show that Chinese companies are using the international IP system to secure the three layers of technology, product, and market in an integrated way. When one places side by side the facts of China’s top PCT ranking, Huawei’s leading position, the growth of digital communication and semiconductors, and China’s top ranking in the design field, what emerges is not a one-off period of strong performance, but the maturation of IP behavior adapted to global competition. The real significance of this news, in my view, lies not in the fact that China has a large number of filings, but in the fact that Chinese technology companies are skillfully using international IP as a central weapon in business.