H2Nano Patents

Patent portfolio assigned to H2Nano (verified via public assignee records). Estimated patent count: 4. Waterloo, Ontario water-treatment startup (SolarPass photocatalytic AOP for oil-sands tailings/mine water). Imperial Oil Kearl demo and Pathways Alliance/COSIA partnership named in Pathways Alliance press. Patents confirmed via Justia assignee listing (H2nanO Inc., ~4 patents incl. US11713256B2 'Composite material for water treatment'). Distinct from unrelated 'H2 Nano' hydrogen water-bottle product.