They do, but only in certain categories. You can’t just own “X” for everything from media to music, technology, fashion etc. You stake your claim for example as Microsoft have done on X when relating to videogames or financial services and so a competitor can’t start a competing videogame company called “X” or “X Games” etc. Meta have trademarked the use of “X” with regards to social media so this will get interesting :-)
But I just read that it’s owned by Microsoft
https://futurism.com/the-byte/elon-microsoft-x-trademark
They do, but only in certain categories. You can’t just own “X” for everything from media to music, technology, fashion etc. You stake your claim for example as Microsoft have done on X when relating to videogames or financial services and so a competitor can’t start a competing videogame company called “X” or “X Games” etc. Meta have trademarked the use of “X” with regards to social media so this will get interesting :-)