Table 3. Patent protected herbs for preventing/treating COVID-19. Name of the player Drug name and details Ref. Biostandard Inc Fermented Isatidis Radix Extract [82] Bioniche Life Sciences Inc Pyranocoumarin enriched composition (free from furanocoumarins) obtained from Zanthoxylum americanum (Prickly Ash) [83] The University of Hong Kong Baicalin – compound extracted from Scutellaria baicalensis [84] Seoul National University Industry-Academic Cooperation Foundation Extract of Angelica dahurica [85] Amazon Biotech Inc. Herbal composition comprising ‘Boswellia carterii stem resin, Styrax benzoin stem resin, Cinnamomum zeylanicum bark, Curcuma zedoaria root, Syzygium aromaticum fruit, Nardostachys chinensis root, Betula alba bark, Impatiens balsamina bark, Costus spicatus root, Allium sativum bulb Cyperus rotundus root and Hyssopus officinalis’ [86] Biopharmacopae Inc. Extracts of ginger and/or goldenrod (Solidago) [87]