2026 Global Patent Technology Trends: AI, Clean Energy, Semiconductors, and the Battle for Standard-Essential Patents
CNIPA.AI Team
Tech Blog
In 2026, the global patent landscape is undergoing a profound structural transformation. According to the latest WIPO data, 275,900 international patent applications were filed through the PCT system in 2025, up 0.7% year-on-year — the second consecutive year of positive growth. But the headline total obscures what matters most: the divergence between different technology sectors and different filing countries is the signal that truly warrants strategic attention.
This article draws on authoritative statistics from WIPO and CNIPA, combined with patent data analysis across four frontier sectors — AI, biotechnology, clean energy, and semiconductors — to provide data-driven decision support for corporate patent strategy.
Global Landscape: Asia's Rise, China's Leadership
A Historic Shift in Geographic Distribution
In 2025, Asian countries contributed 56.3% of global PCT applications — a historic turning point in the global innovation landscape, marking the formal transfer of intellectual property leadership from Europe and North America to Asia.
| Country/Region | 2025 PCT Applications | Year-on-Year | Consecutive Growth |
|---|---|---|---|
| China | 73,718 | +5.3% | Consecutive growth |
| United States | 52,617 | -3.0% | Declining 4 consecutive years |
| Japan | 47,922 | -1.0% | Declining 3 consecutive years |
| South Korea | 25,016 | +4.9% | Growing 28 consecutive years |
| Germany | 16,441 | -1.8% | Declining 3 consecutive years |
(Source: WIPO PCT Yearly Review 2025)
China ranked first globally with 73,718 applications; the United States placed second with 52,617. The trend directions of the two countries are diametrically opposed: China continues to rise while the United States has declined for four consecutive years. This scissors-effect is the most strategically significant signal in today's global patent landscape.
Top Global Patent Filers in 2025
| Rank | Company | Applications | Country | Primary Technical Fields |
|---|---|---|---|---|
| 1 | Huawei Technologies | 7,523 | China | Communications, AI, semiconductors |
| 2 | Samsung Electronics | 4,698 | South Korea | Semiconductors, consumer electronics |
| 3 | Qualcomm | 3,227 | United States | Wireless communications, mobile processors |
| 4 | LG Electronics | 2,400 | South Korea | Electric vehicles, home appliances |
| 5 | CATL | 2,203 | China | Power batteries, energy storage |
(Source: WIPO announcement, March 2026)
Huawei retained its eighth consecutive year at the top of global corporate PCT filings with 7,523 applications, widening its lead. CATL entered the top five for the first time, reflecting the rapid rise of the clean energy sector in global patent competition.
CNIPA Domestic Data
In 2024, CNIPA received 1.828 million domestic invention patent applications (+9%), 3.185 million utility models, and 819,000 design patents. Granted invention patents exceeded 1.045 million (+13.5%). China's total active invention patents reached 4.756 million, making China the first country to cross the 4 million threshold.
Quality alert: Notably, CNIPA conducted three rounds of special enforcement campaigns against abnormal patent applications in 2024, handling approximately 597,000 non-compliant applications — about 10.2% of total filings. This highlights that patent quality remains a significant challenge for China's patent system.
Trend 1: AI Patents — From Quantity Explosion to Quality Competition
The Scale of AI-Related Patents
Sampling of the 31,210 invention patent applications published by CNIPA on a single day in January 2026 shows that IPC G06 (computing/digital data processing) related patents accounted for over 32% of all sampled applications, with G06N (AI/machine learning related) cited 142 times — the most cited sub-classification.
Global perspective: WIPO data shows that generative AI-related patent applications grew by more than 100% in 2024–2025. The combined AI patent applications from China, the United States, and Europe account for over 85% of global AI patent volume.
Hot AI Patent Sub-domains in 2025–2026
| Sub-domain | Representative Technology | Leading Chinese Applicants | Application Trend |
|---|---|---|---|
| Large language models | Transformer architecture, RLHF | Huawei, Baidu, Alibaba | Rapid growth |
| Computer vision | Image recognition, object detection | Megvii, SenseTime, Tencent | Leveling off |
| AI chips | Neural network processor design | Cambricon, Huawei Ascend | Rapid growth |
| AI + healthcare | Medical imaging, drug discovery | United Imaging, AstraZeneca China | Rapid growth |
| Embodied intelligence | Robot perception and control | Unitree Robotics, UBTECH | Early stage |
Grant Challenges for AI Patents
AI-related patents face differentiated examination challenges across jurisdictions:
- China (CNIPA): The 2026 updated examination guidelines impose clearer requirements for technical feature disclosure in AI model patent applications — training data characteristics and key model parameters must be documented in the specification
- United States (USPTO): The Alice test remains a primary hurdle for AI software patents; emphasis is placed on "technical improvement"
- Europe (EPO): Strict technical character requirements; purely mathematical/statistical methods are not protectable; AI inventions must demonstrate "technical effects"
Recommendation for applicants: When drafting AI patents, emphasize technical implementation details rather than algorithmic logic itself; highlight quantifiable performance improvements (speed, accuracy, energy efficiency); and provide sufficient experimental verification data in the specification.
Trend 2: Clean Energy Patents — The Global Race in Batteries and Solar
Power Battery Patent Landscape
CATL entering the global PCT top five with 2,203 applications represents Chinese clean energy companies' full-scale ascent in international patent competition.
Global power battery patent applications are dominated by CATL, LG Energy Solution, Panasonic, Samsung SDI, and BYD. Japan, Korea, and China collectively account for over 80% of global power battery patent applications.
Technology distribution:
| Technology Sub-domain | Global Patent Growth Rate | Chinese Company Share | Representative Applicants |
|---|---|---|---|
| Solid-state batteries | 45%+ | ~35% | CATL, BYD, Ganfeng Lithium |
| Cathode materials | 25% | ~50% | Dynanonic, CATL |
| Anode materials | 30% | ~45% | BTR New Material, Shanshan |
| Battery management systems (BMS) | 20% | ~40% | NIO, BYD |
| Charging technology | 35% | ~55% | Huawei, CATL, BYD |
Solid-state batteries are the hottest technology competition area. All-solid-state battery patent applications grew by over 45% in 2024–2025, with Japan, Korea, China, and the United States in intense competition. Japanese companies Toyota and Panasonic have early foundational patent positions in solid electrolytes, but Chinese companies are growing fastest in cathode/anode materials and manufacturing process patents.
Solar and Energy Storage
China's solar module exports continued to lead globally in 2024, accompanied by sustained growth in patent filings. CNIPA data shows that photovoltaic-related patents (IPC: H02S, H01L31) grew approximately 22% in 2024.
| Sub-sector | Technology Focus | Leading Patent Applicants |
|---|---|---|
| Perovskite solar cells | Efficiency improvement, stability | GCL Integration, Tongwei |
| N-type TOPCon | Bifacial generation, carrier lifetime | Jinko Solar, LONGi Green Energy |
| Integrated solar-storage | System integration, energy scheduling | BYD, Sungrow |
| Off-grid storage | Large-capacity electrochemical storage | CATL, BYD |
Trend 3: Semiconductor Patents — The IP Battleground for Domestic Substitution
Strategic Significance of Chinese Semiconductor Patents
International competition in the semiconductor industry has extended from product competition to comprehensive patent portfolio competition. CNIPA's January 2026 sampling data shows 16 semiconductor-related patents (IPC H01L series), covering the entire supply chain from chip design to wafer fabrication, photolithography, and advanced packaging.
Chinese semiconductor-related patent applications grew approximately 35% year-on-year in 2024 — among the highest growth rates across all technical fields, closely aligned with China's domestic substitution strategy in semiconductors.
Semiconductor Patent Hot Spots: China vs. Global
| Sub-domain | Leading Chinese Applicants | Comparison with Overseas | Technology Gap Assessment |
|---|---|---|---|
| Advanced process nodes (sub-7nm) | SMIC, Huawei | TSMC, Samsung lead | Significant gap; patent portfolio catching up |
| Chiplet/3D packaging | JCET, Huatian Technology | Intel, TSMC have first-mover advantage | Gap narrowing |
| Memory (DRAM/NAND) | CXMT, YMTC | Samsung, SK Hynix, Micron lead | Gap continuing to narrow |
| Power semiconductors (SiC/GaN) | BYD Semiconductor, StarPower | Infineon, STMicroelectronics | Near international level |
| EDA-related chip design | Huada Empyrean | Synopsys, Cadence dominant | Significant gap |
Key observation: China is growing fastest in patent portfolios for power semiconductors and advanced packaging — precisely the two areas where domestic substitution is most practically feasible in the near term.
Trend 4: Biotechnology and Healthcare Patents
The Biotech Patent Explosion
WIPO's World Intellectual Property Report 2026: Technology in Flux identifies biotechnology as one of the fastest-growing patent fields in 2025–2026, with the convergence of AI and biotechnology particularly prominent.
| Biotech Sub-domain | Global Patent Growth Rate | Representative Chinese Companies |
|---|---|---|
| Gene editing (CRISPR) | 30%+ | EdiGene, ReFocus Gene Therapeutics |
| Antibody drugs (mAb/bispecific) | 20% | Innovent Biologics, BeiGene |
| mRNA therapeutics | 40%+ | Stemirna Therapeutics, Abogen |
| AI-driven drug discovery | 60%+ | XtalPi, Insilico Medicine |
| Cell therapy (CAR-T) | 35% | Gracell Biotechnologies, CARsgen Therapeutics |
A notable characteristic of Chinese biotech patent applications is high technological fragmentation — unlike semiconductors, which are dominated by a few large players, the biotech sector involves many small and medium-sized biotech companies and universities, creating a more distributed innovation ecosystem.
Trend 5: The 5G/6G Standard-Essential Patent Competition
Global 5G SEP Landscape
Standard-essential patents (SEPs) are the most strategically valuable patent type — once a technology is incorporated into a communication standard, the relevant patents can collect licensing fees from every company implementing that standard worldwide.
As of early 2025, approximately 56,000 5G SEP patent families have been established globally. By holder nationality:
| Country | 5G SEP Share | Representative Companies |
|---|---|---|
| China | 40.8% | Huawei, ZTE, OPPO, Datang, vivo |
| South Korea | 16.5% | Samsung, LG |
| United States | 15.2% | Qualcomm, Intel |
| Finland | 8.1% | Nokia |
| Sweden | 7.6% | Ericsson |
China holds the top position globally with a 40.8% share of 5G SEPs; Huawei alone accounts for approximately 15%, leading globally for multiple consecutive years — far ahead of second-place Qualcomm at approximately 9.8%.
5G SEP licensing controversy: SEPs must be licensed under FRAND principles (fair, reasonable, and non-discriminatory), but "fair and reasonable" pricing determinations have fundamental disagreements across global courts. In 2025, Chinese, US, and European courts maintained inconsistent standards for FRAND royalty rates, making cross-border SEP litigation a routine occurrence.
6G Patent Portfolio: The Early Race
6G technology is still in the standardization phase, but patent filings have already begun:
- Huawei, Samsung, Qualcomm, Ericsson, Nokia, and other leading companies have filed large numbers of 6G-related patents at WIPO and national patent offices
- China Mobile in 2025 declared approximately 3,600 SEP families, transitioning from operator to technology leader
- Key 6G technology areas (terahertz communications, AI-native networks, integrated sensing and communication) are expected to see intensive patent filings from 2027 to 2030
Implication for companies: The window before 6G standardization is complete is the optimal time for patent portfolio building. Even if patents filed today cannot immediately be licensed, they provide valuable leverage in future negotiations.
Trend 6: The Patent Quality War — The End of the Quantity Era
Global Focus on Patent Quality
Behind China's rapid growth in patent volumes lies an increasingly prominent quality problem. CNIPA's handling of approximately 597,000 non-compliant applications in 2024 demonstrates that the "filing volume" era is being actively suppressed.
In December 2025, CNIPA published its Report on the Construction of a Strong Intellectual Property Country (2025), clearly designating "improving patent quality" as the future work priority. It is expected that over the next 3–5 years, China's patent application growth rate will slow, but the average grant rate and protection quality per patent will continue to improve.
Characteristics of High-Value Patents
Analysis of highly cited, high-value patents globally in 2024 shows that quality patents typically exhibit the following characteristics:
| Characteristic | Specific Manifestation | Implication for Drafting |
|---|---|---|
| Appropriate claims scope | Neither too broad (unpatentable) nor too narrow (no commercial value) | Avoid over-broad claims that cannot be granted, or overly narrow claims with no market value |
| Sufficient technical description | Specification embodiments cover the claims scope | Provide sufficient number and variety of embodiments |
| Verifiable technical effects | Technical effects supported by experimental data | Include comparative experimental data |
| Multi-jurisdiction coverage | Protection secured in major markets | Prioritize patent filing in target commercial markets |
| Appropriate family size | Build patent clusters through divisional applications | Develop a divisional application strategy |
2026 Corporate Patent Portfolio Recommendations
Differentiated Strategy by Technology Sector
AI sector: Focus on technical implementation in specific application scenarios rather than algorithms themselves. Emphasize coordinated filings in China, the US, and Europe; be attentive to different jurisdictions' varying requirements for AI patent eligibility.
Clean energy sector: Focus on solid-state batteries and next-generation photovoltaic technology. File simultaneously in Germany, Japan, and the United States in addition to China, covering the major EV and energy markets.
Semiconductor sector: Focus on power semiconductors and advanced packaging — the two directions where Chinese companies have the most realistic opportunities for breakthrough. Actively participate in relevant standardization to lay the groundwork for SEP development.
Biotechnology sector: Make full use of the Patent Cooperation Treaty (PCT) to protect core technologies, and be attentive to differences in patent eligibility rules across countries for emerging technologies such as gene technology and mRNA.
Timing of Global Patent Filings
| Stage | Recommended Action | Timing |
|---|---|---|
| Early R&D | Launch prior art search; assess patent prospects | After core technical concept is confirmed |
| Technology mature | File national application; establish priority date | As early as possible, before public disclosure/sale |
| Pre-product launch | PCT application covering major target markets | Within 12 months of priority date |
| After market validation | Enter national phase in key markets first | Within 30/31 months of PCT filing |
Action Checklist: 2026 Annual Corporate Patent Portfolio Assessment
- Review core technology achievements from the past 12 months; assess patent filing value
- Cross-reference technology directions against hot sectors in this article; confirm alignment of patent portfolio with technical direction
- Evaluate competitor patent filing activity (using PatSnap/Incopat monitoring tools)
- Review annuity payment status for existing active patents in the portfolio
- Assess whether there are technology areas suitable for standardization participation and SEP development
- Confirm patent filing budget and target jurisdictions for the next 12 months
- Monitor CNIPA 2026 regulation changes on examination requirements for AI-related patents
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