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HydroGraph Awarded New U.S. Patent for Graphene-Based Actuator Technology

VANCOUVER, British Columbia, Oct. 08, 2025 (GLOBE NEWSWIRE) -- HydroGraph Clean Power Inc. (CSE:HG) (OTCQB:HGRAF) ("HydroGraph" or the "Company"), a leading producer of ultra-pure graphene, today announced that it has