Patent Cliff · Clean Energy
Clean Energy patent cliff
First-generation solar panel, wind turbine, and lithium-ion battery patents are expiring — dramatically reducing barriers for manufacturers in the energy transition.
Expiring 2025–2029
1
Citations at stake
7
Peak cliff year
2029
Already expired
24
Patents Expiring by Year (2025–2029)
2025
0
2026
0
2027
0
2028
0
2029
1
Most-Cited Clean Energy Patents Expiring 2025–2029
Year-by-Year Top Patents
Strategic context
First-generation solar panel, wind turbine, and lithium-ion battery patents are expiring — dramatically reducing barriers for manufacturers in the energy transition. As these patents expire, competitors and open-source projects can freely implement the underlying inventions without license fees. For FTO analysis on specific products, use the FTO Risk Snapshot tool →
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