In reply to Sven Lehnert.

I think everybody here is misunderstanding the patent clause, here's what it says in layman's terms:

- Facebook might have extra patents around React
- Facebook extends patent grants to the user, thereby covering them in case of patent litigation regarding those patents
- If you sue Facebook for patent infringement, the grants to their patents becomes void, so you're still allowed to use React, Facebook just no longer has your back in case someone sues you over patent infringement when using React.

That's it. W3C Web Standards an Apache v2 license have the same clause.