Evonik wins two patent rights legal disputes in US and EU

December 30, 2025 |

In Germany, Evonik has won two legal disputes, unquestionably securing EU and US patent rights for the company’s pioneering 3-stage biogas upgrading process with SEPURAN® Green membranes.

In two judicially separate, final decisions, the European Patent Office (EPO) upheld Evonik’s EP3240620 B1 patent and the US Patent and Trademark Office (USPTO) upheld Evonik’s US 10,471,380 B2 patent. The decisions were issued in each organization’s respective board of appeals, dismissing all requests for invalidation that were filed by other parties. As a result, both the EPO and USPTO consistently recognize and uphold legal protection for Evonik’s innovative 3-stage process, which was developed by the company’s top experts for the benefit of biogas upgrading customers across the EU, the US, and other key global markets.

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Category: Fuels

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