Reading through Facebook's PATENTS file in its React library and several discussions on Hacker News have left me confused about the implications this file which is included in several open-source libraries made by Facebook.
The primary question is: does losing the license mean the individual or company distributing a product using this library has to stop using React entirely and reimplement their product without it, or does it only affect your ability to defend your own patents that may rely on the patents covering the library?
Additionally, what is the breadth of the phrase "other actions" in the first sentence of the second paragraph? Claim is defined as a "lawsuit, assertion or other action" which sounds extremely broad.
Facebook has amended its PATENTS file in order to clarify the scope of the grant. While their library is no longer the subject of this question, I wouldn't mind an explanation of the actual repercussions of losing a license that has been granted through such methods.