Patentometric analysis of the technological development of biotechnology for health in higher education institutions in Rio Grande do Sul oleh CÁSSIA REGINA A. MENDES, EMELIN PAPPEN, ADELAIDE MARIA C. BAETA, WILLIAM B. DOMINGUES, EDUARDO N. DELLAGOSTIN, VINICIUS F. CAMPOS, LUÍS FERNANDO S.M. TIMMERS, MÁRCIA INES GOETTERT, JOÃO ANTONIO P. HENRIQUES