Inertial Confinement Fusion Patents: Top Companies & Trends 2026
Inertial Confinement and Laser Fusion Patents: Who Leads and Where the Filing Concentrates
One assignee dominates. The leader holds 126 of 245 records in scope, and the top five combined reach 73.1% of the field. Filings peaked at 16 in 2017. The comparable recent window shows growth rather than decline: 7 records in 2021 rising to 9 in 2024, a 29% increase over that three-year span. Treat 2025 and 2026 figures as provisional given publication lag.
- 1LAWRENCE LIVERMORE NAT SECURITY LLC126
- 2INNOVEN ENERGY LLC18
- 3ARCATA SYST16
- 4UNIFIED GRAVITY CORP10
- 5MOSES EDWARD I9
See the full inertial confinement and laser fusion 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 this landscape
Who holds the most patents in inertial confinement and laser fusion?
One assignee leads the ranked list with 126 of the 245 records in scope, well ahead of the rest of the field. The top five assignees combined account for 73.1% of all records, and the top ten reach 85.3%. This level of concentration is typical of a field that grew out of a single national research programme rather than a broad commercial supply chain.
Is filing activity in laser fusion patents increasing or slowing down?
The comparable recent window shows growth: filings rose from 7 records in 2021 to 9 in 2024, a 29% increase. It can look like activity is falling off in 2025 and 2026, but that is a publication-lag artefact, since publication typically trails filing by around 18 months. Judge momentum from 2024 and earlier, not from the most recent two years.
What technology areas do inertial confinement fusion patents actually cover?
Fusion reactor claims under IPC class G21B appear in 64.9% of the 245 records, making it the dominant category by a wide margin. Laser and stimulated-emission claims (H01S) appear in 22.4% of records and plasma/particle-accelerator claims (H05H) in 19.6%, often inside the same filings as the reactor claims. Smaller categories such as optical modulation, glass manufacture and temperature measurement each cover under 4% of records, marking narrower adjacent territory.
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 Inertial Confinement and Laser Fusion 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.