Solid-State Battery Patent Landscape 2026 | Patsnap Eureka
Solid-State Battery Patent Landscape 2026
- Filings have already turned down. the peak was 2023 at 2,170 records, and the largest filers are now pulling back sharply — Toyota's latest-year count is down 89% year-on-year.
- H01M carries the bulk of the claim space. 19,832 records sit in batteries and cells, but conductor/insulator (H01B), inorganic compound (C01B/C01G) and ceramic (C04B) subclasses show meaningful overlap that most searches miss.
- Co-filing is rare and concentrated. only 10 co-assignee pairs appear at scale, and one pairing — Hyundai and Kia — accounts for 373 shared filings, far ahead of any other alliance.
Filing trend and technology composition
Filings by year (2017–2026)
Growth from 836 filings in 2017 to a peak of 2,170 in 2023, followed by a decline; 2026 figures are partial and will rise as publications catch up.
IPC subclass distribution
H01M (batteries, cells & fuel cells) accounts for the largest single share at 19,832 records, followed by H01B (cables, conductors & insulators) at 2,787; inorganic compound classes C01B and C01G together add 2,630 records tied to electrolyte and cathode chemistry.
See the full solid-state batteries analysis in Eureka
Ask your own questions about solid-state batteries against the same 208M+ records — every answer comes back with the patent numbers behind it.
Summary view of one automated run. Source: Patsnap Eureka. Filing trend and technology composition. Derived from a Patsnap search on Solid-State Batteries covering 2015–2026, data cut-off 2026-07-30. Counts reflect published records only and shift as new filings publish. See the full landscape report