• José Adão Carvalho Nascimento Junior, Anamaria Mendonça Santos, Lucindo José Quintans-Júnior, Cristiani Isabel Banderó Walker, Lysandro Pinto Borges, and Mairim Russo Serafini.
• Department of Pharmacy, Federal University of Sergipe , São Cristóvão, Sergipe, Brazil.
• Expert Opin Ther Pat. 2020 Aug 1; 30 (8): 567-579.

IntroductionCoronavirus has been responsible for several virus outbreaks since 2003, caused by SARS-CoV-1, MERS-CoV, and currently SARS-CoV-2 (COVID-19), the causative agent of coronavirus disease in 2019. COVID-19 has become a global public health emergency because of its high virulence and mortality capacity. This patent review aims to provide an overview of the patents that present possible treatments for SARS-CoV-1, SARS-CoV-2 and MERS-CoV.Areas CoveredTo treat SARS, MERS and SARS-CoV-2, researchers have filed patents for a number of therapeutic agents. Most of the treatments found were protease inhibitors aimed at proteases such as PLpro, 3 CLpro, RNA helicase, and Spike protein, or used monoclonal antibodies and interferons. In addition, the use of Chinese folk medicine and its multitude of medicinal plants with strong antiviral properties was reinforced. Thus, these therapies used in previous epidemics can serve as an aid in the new pandemic by SARS-CoV-2 and be a starting point for new treatments.Expert OpinionThe various antiviral alternatives presented in this review offer therapeutic options to fight coronavirus infections. If shown to be effective, these drugs may be extremely important in the current pandemic.

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