About 175 thousand #nanotechnology #patent applications have been published by the United States Patent and Trademark Office (USPTO) from 2002 to 2021, which shows an average annual growth rate of 9.8%.
#Egypt is currently the top #nanotechnology research country in Africa, while #South_Africa has filed the most #patents and established the most nanotechnology companies and institutions.
About 9500 nanotechnology #patent_applications have been published in #USPTO up to October 2020, more than half of them belong to the United States while China, South Korea, and Japan possess the next ranks.
#Borophene, an #emerging_nanomaterial: publication of about 100 articles and 7 US #patent_applications in 2017.