Volt Carbon Technologies Receives Notice of Allowance for Second U.S. Patent on Air Classifier Technology, Reports Graphene Achievement, and Announces Stock Option GrantOctober 02, 2025 8:51 AM EDT | Source: Volt Carbon TechnologiesCalgary, Alberta--(Newsfile Corp. - October 2, 2025) - Volt Carbon Technologies Inc. (TSXV: VCT) (OTCQB: TORVF) ("Volt Carbon" or the "Company"), is pleased to announce significant updates relating to its intellectual property, graphene development program, and stoc ...