European Patent Office revokes Hanwha's passivation patent for silicon solar cells

The EPO invalidated Hanwha Solutions' disputed patent on passivation technology, ending years of litigation with competitors including JinkoSolar, Longi and REC over a technique widely used in silicon solar manufacturing.

First covered Aug 11, 2026 · 11:24 PM PT · 1 article

European Patent Office revokes Hanwha's passivation patent for silicon solar cells — Image via pv-magazine.com

Coverage

5h PV Magazine European Patent Office revokes Hanwha’s long-disputed passivation patent — The European Patent Office has revoked Hanwha Solutions’ 689 patent covering passivation technology used in silicon solar cells, citing a lack of inventive…

More coverage from around the web

juve-patent.com EPO revokes Hanwha’s key solar cell patent after 11-year opposition battle

en.longi-solar.com LONGi has achieved several successes in patent dispute against Hanwha Q-Cells Solar

pv-tech.org JinkoSolar responds to Hanwha Q CELLS’ passivation patent infringement claim - PV Tech

juve-patent.com Hanwha Q-Cells and Hoyng ROKH Monegier win cross-border injunction against Longi - JUVE Patent

solarbytes.info EPO revokes Hanwha solar cell patent after appeal

Appeared in: 2026-08-12 (#3)

← Back to the brief