Hydrograph announces two patent application filings for its innovative graphene application

Vancouver, british columbia, sept. 04, 2024 (globe newswire) -- hydrograph clean power inc. (cse: hg) (otcqb: hgraf) (fra: m98) (the “company” or “hydrograph”), a sustainable commercial manufacturer of pristine graphene, has announced the filing of two new us patent applications for graphene-coated hollow glass microsphere technology (hgms).
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