European Patent Office upholds Solvay’s soda ash recycling patent
Solvay announces that the European Patent Office (EPO) has upheld its European patent EP 3 971 138 B1 (“EP ’138”) following opposition proceedings initiated by WE Soda Ltd on February 13, 2025. The decision, issued after oral hearings on May 19, 2026, maintains the validity of the patent subject only to limited amendments. The decision may be subject to appeal.
Read More