Manila Times Business
Birchtech Announces the End of All Remaining Attempts to Challenge Patents Under IPR Petition
Company's Mercury Removal Technology Patents Protected Against Invalidity Claims Following Termination of All Inter Partes Review (IPR) Petitions; Collection Efforts Remain Underway Following $78 Million Judgment CORSICANA, Texas, June 03, 2026 (GLOBE NEWSWIRE) -- Birchtech Corp. (NYSE American: BCHT) (TSX: BCHT) ("Birchtech” or the "Company”), a leader in specialty activated carbon technologies for sustainable air and water treatment, today announced the filing of termination requests for all r
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