Microreactor & Heat Pipe Patents: Who Leads, Trends 2026
Microreactor and heat pipe cooling patents: who is filing, and where the field is still open
A narrow, concentrated field. Only 22 published records match this search across 2015-2026, with a ranking of just 7 assignees — this is a niche still forming, not a mature crowded art. Filings ran from 6 in 2017 down to 1 in the most recent year, which is only a partial year of data. Publication typically lags filing by around 18 months, so the last one to two years of any trend understate real activity; treat the recent-year dip as a data artefact first and a genuine slowdown second.
- 1西屋电气公司9
- 2ENERGIE PROPRE PRODIGY LTEE PRODIGY CLEAN ENERGY LTD8
- 3TROJER MATHIAS2
- 4HADRON ENERGY INC2
- 5特里亚德国家安全有限责任公司1
See the full microreactors and heat pipe cooling analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about microreactor and heat pipe patents
How many patents exist for nuclear microreactors with heat pipe cooling?
This landscape search returns 22 published records covering 2015 through the 2026 data cut-off, matched against terms for microreactors, heat pipe reactors and transportable reactors combined with deployment and licensing language. That is a small corpus by patent-landscape standards, reflecting that heat-pipe-cooled microreactors are still an emerging design category rather than an established, heavily filed one. Readers should treat the true current total as somewhat higher, since publication typically lags the actual filing date by around 18 months.
Who are the leading patent holders in heat pipe reactor technology?
The dataset’s assignee ranking covers 7 companies, with the leading filer holding 9 of the 22 records in scope. That is the complete ranking this search returns, not a filtered top-50 or top-100 list. Beyond the leader, holdings drop off quickly — fifth place holds only 1 record — indicating a field with one clear early mover and a long tail of single-filing entrants rather than several evenly matched incumbents.
What does the IPC classification data say about where innovation is concentrated?
G21C, the nuclear-reactor subclass, appears on 81.8% of the 22 records in scope, making core-design claims by far the most heavily filed area. G21D (nuclear power plants) follows at 36.4%. Deployment-adjacent classes — B63B for marine vessels, E02B for hydraulic and waterway engineering, and single-record showings in steam systems, fuel supply and heat exchange — are claimed far less densely, which points to those integration layers as areas with more open claim space.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Microreactors and Heat Pipe Cooling covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.