By one common measure, China has already won quantum: in 2024 it accounted for roughly 60% of global quantum-technology patent filings, against about 19% for the United States.[1] As with AI, though, the patent count flatters the position.
The tell is where those patents travel. Only about 7% of China’s quantum patent families are filed internationally, versus roughly 49% for the United States, and a domestic-only filing protects little in global markets or says much about who can set standards and license components.[2] The lead is also lopsided by subfield: China dominates patents in quantum communications and sensing, while the US leads in quantum computing, the hardest and most valuable layer.[2]
China files most of the world’s quantum patents, and most of them never leave home.
Show as a table
| Series | Value |
|---|---|
| China | 60% |
| United States | 19% |
| Rest of world derived: 100 − 60 − 19 | 21% |
Source: reference [1] below.
Real, and easy to overstate
None of this means the activity is hollow. Quantum patent filings have grown roughly five-fold over a decade, and China publishes the largest share of quantum-communications research by a wide margin.[1] But volume and impact diverge: the US retains a lead in citations and in the internationally-protected, computing-focused patents that shape a future market.[2] Patent-family counts also vary by counting method, so cross-source comparisons should be handled with care.[1]
Patents in an early field are a measure of activity, not of position, and the gap between the two is where the misreading happens. A domestic-only filing signals effort and may deter a local copier, but it protects nothing in export markets and confers no say over the standards that will decide interoperability and licensing. The subfield split sharpens the point: leadership in communications and sensing patents is real, but the internationally-protected, computing-focused patents, the ones that shape a future market, still skew American. Read China’s patent lead as a serious, sustained commitment; do not read it as a claim on the value.
The investment case
Patent-share headlines are a poor proxy for commercial position in quantum, just as they are in AI. The more informative signals are international patent families, standards participation, and control of the component supply chain, where the picture is far more balanced than “60% versus 19%” suggests. We read China’s patent lead as evidence of serious, sustained effort, not as a scoreboard of who will capture the value.
| Ref | Publication | Date | Supports |
|---|---|---|---|
| [1] | MIT Quantum Index Report | 2025 | Patent-filing shares, growth, counting caveat |
| [2] | ITIF | Sep 2024 | International filing rates, subfield split, citations |
References
- MIT Quantum Index Report, “Patents,” 2025. Read source ↗
- ITIF, “How Innovative Is China in Quantum?,” Sep 2024. Read source ↗
Every source above is public and linked. This is a research brief from Singularity Dynamics; full briefings on this topic are available on request.