https://www.uspto.gov/trademarks/basics/what-trademark#:~:text=A common misconception is that,your specific goods or services.
Of course, what does a major corporation do when enough people coopt your trademarked word to define their religion to become officially recognized (2005 in the USA) and gain tax exempt status (2015)?
https://en.wikipedia.org/wiki/Jediism#:~:text=Jediism (or Jedism) is a,"Jedi" on national censuses.