Patents

Patents

Main article: List of Nikola Tesla patents

Newspaper representation of Tesla's theoretical invention, the thought camera, which would photograph thoughts. c. 1933

Tesla obtained around 300 patents worldwide for his inventions.^[161] Some of Tesla's patents are not accounted for, and various sources have discovered some that have lain hidden in patent archives. There are a minimum of 278 patents^[161] issued to Tesla in 26 countries that have been accounted for. Many of Tesla's patents were in the United States, Britain, and Canada, but many other patents were approved in countries around the globe.^[10]:62 Many inventions developed by Tesla were not put into patent protection