TRENDS IN SENSORS AND METHODS OF MEASURING ATMOSPHERIC FORMALDEHYDE GAS CONCENTRATION: A PATENT LANDSCAPE. International Journal of Geomate, [S. l.], v. 25, n. 108, p. 208–215, 2023. Disponível em: https://geomatejournal.com/geomate/article/view/3892. Acesso em: 9 oct. 2026.