Aircraft Battery Systems Patents: Top Companies & Trends 2026
Aircraft battery systems patents: who leads, where filings concentrate, and what remains open
39.3% concentration at the top. The five leading assignees account for 1,318 of 3,353 records in scope, but the ranked field runs 100 companies deep with a long tail below them. Filings rose from 126 in 2017 to a peak of 530 in 2022. Comparing the two most recent complete years, 2021 (286) to 2024 (213) shows a 26% decline — a real cooling in disclosed activity, not an artefact of publication lag, though 2025 and 2026 figures will still rise as pending applications publish.
- 1LG ENERGY SOLUTION LTD23.7%
- 2BETA AIR LLC6.8%
- 3TOYOTA JIDOSHA KK3.4%
- 4ASAHI KASEI BATTERY SEPARATOR CORP2.8%
- 5ARCHER AVIATION INC2.5%
See the full aircraft battery systems 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 on aircraft battery systems patents
Who holds the most patents in aircraft battery systems?
One assignee leads the ranked field with 795 records, far ahead of fifth place at 85 and tenth place at 52. The top five assignees combined hold 39.3% of all 3,353 records in scope, and the top ten hold 48.5%. Below that the field spreads across a long tail of the remaining ranked companies plus unranked single-filing entrants, so the space is led but not closed.
Is aircraft battery patent filing growing or slowing?
Filing peaked at 530 in 2022, and comparing the two most recent complete years — 2021 at 286 versus 2024 at 213 — shows a 26% decline. Because publication lags filing by roughly 18 months, 2025 and 2026 figures are still incomplete and will rise as pending applications publish, but the 2021-to-2024 comparison itself is a real cooling, not a lag artefact.
What technology areas dominate aircraft battery patent claims?
Battery cell and chemistry claims under IPC class H01M appear in 57.1% of the 3,353 records, and power supply/grid systems under H02J appear in 31.9%. Aircraft-specific classes are comparatively thin: B64D (aircraft equipment) covers 6.7% and B64C (aeroplanes and helicopters) covers 4.8%. This means most patented invention in this space is battery and power-electronics chemistry that happens to be applicable to aircraft, rather than airframe-specific integration.
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 Aircraft Battery Systems 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.