Figure 2. Comparison between the accumulated patent filings in Brazil (BR), in the United States (US), and in participating countries of the European Patent Convention (EPC), from 1997 to 2017. The search was performed by adding the keywords “radiopharma” OR “radioisotop” OR “radioimmun” OR“ radioactive” OR“ radiotherap” OR “radiolabel” OR “radionuclide”, by the Questel Orbit© software, in which (A) refers to family A61K51/00, and (B) to family A61K49/00.
