Despite controlling roughly 70 per cent of global rare earth mining and nearly 90 per cent of processing capacity, China holds a surprisingly thin share of the high-value patents that govern what those materials actually do — with the United States and Japan dominating the intellectual property landscape for advanced rare earth functional technologies, according to a new study.

Where the Patent Power Actually Sits

Downstream products derived from processed rare earths — including permanent magnets, catalysts, luminescent materials, and polishing materials — account for more than 80 per cent of all rare earth-related patents worldwide, the study found. These categories represent the most commercially significant applications across modern industry, from defence electronics to clean energy systems.

Japan retained an overall technological lead specifically in permanent magnets, while the US led across most core technologies in catalytic, luminescent, and polishing materials. China, by contrast, holds an edge in only a limited number of sub-technologies within these sectors and continues to trail both rivals in several critical manufacturing processes and material systems.

The Innovation Gap Beijing Has Not Closed

The study attributes part of this gap to structural weaknesses in China's innovation ecosystem. While China files a large volume of rare earth patents domestically, only a relatively small proportion qualify as international patents — the category that carries genuine commercial value in global markets. Coordination among universities, industry, and intellectual property management bodies remains weak, the research notes, meaning many scientific advances have yet to mature into commercially significant patent portfolios.

Notably, this is not a new observation. Critics of China's technology strategy have long pointed out that raw-material dominance and patent leadership are separate competitions — and that Beijing has historically excelled at the former while underinvesting in the latter.

China's Rare Earth Leverage — and Its Limits

China has nonetheless deployed its upstream dominance as a tool of economic statecraft. Beijing has periodically restricted rare earth exports to exploit Western dependencies on materials essential for defence systems — including fighter jets and guided missiles — as well as for renewable energy technologies, electric vehicles, and consumer electronics such as smartphones.

This comes amid an intensifying US-China technology rivalry in which access to critical minerals has become a front-line strategic concern. Washington and its allies have been accelerating efforts to diversify rare earth supply chains, with Japan — itself a major downstream processor — among the most active in building alternative sourcing arrangements.

What This Means for the Global Tech Race

The findings suggest that China's rare earth advantage is more fragile than its mining and processing figures imply. Control of the raw material pipeline does not automatically confer control over the value-added technologies that depend on it. For industries racing to secure supply chains for next-generation semiconductors, EV motors, and defence components, the patent landscape points to a continued dependence on US and Japanese innovation even as sourcing strategies shift.

Whether China can close the patent gap through accelerated domestic R&D and stronger university-industry linkages will be a key variable to watch in the coming decade of critical-minerals competition.