GENEVA, July 1 -- BIRCHTECH CORP. filed a patent application (US2025/059393) for “REPURPOSING OF SPENT ACTIVATED CARBON”. With publication no. WO/2026/128807, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: C01B 32/205

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).

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