The EPO published patent application EP4440746A1 for ion exchange-functionalized catalyst supports developed by 1S1 Energy, Inc. The patent inventors are Sukanta Bhattacharyya and Daniel Sobek, with publication date March 25, 2026. The technology covers catalyst support compositions with applications in fuel cells (H01M 4/90, H01M 4/92), electrolyzers (C25B 11/054, C25B 11/067), and hydrogen production (C25B 1/04). The patent is designated for all 31 European patent convention states.

Patent publications do not impose compliance requirements on third parties. Manufacturers and investors in battery, fuel cell, or electrolyzer technology should review the patent claims to assess potential licensing needs or freedom-to-operate considerations for related catalyst support products. No regulatory action or compliance deadline applies to this notice.