VANCOUVER, British Columbia, Sept. 24, 2025 (GLOBE NEWSWIRE) -- HydroGraph Inc. (CSE: HG) (OTCQB: HGRAF) (“HydroGraph”), a leading producer of ultra-pure graphene, and SEADAR Technologies, developers ...
This marks the first U.S. patent granted for an invention developed in HydroGraph’s laboratories, part of the Company’s strategy to expand its intellectual property portfolio beyond its foundational ...
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